For an extreme case, generally you need at least three layers of protection. First is an integrated screen protector. No stick-on overlays, and therefore, no bubbles. The other layers include a skeletal hard case to provide structure and stability, along with a silicone overlay that provides initial shock and bump resistance.  Usually the silicone overlay includes either flaps or overlays for the dock and headphone ports to prevent any moisture from accidentally getting int, too. All three together take their design from biology (skin/skeleton/vital organs), and you can think of the overlays as eyelids or a mouth.

Otterbox Defender ($49.99)

For many, Otterbox is synonymous with extreme protection. Up until the iPhone 4, I was generally satisfied with the Defender line, and I still love my iPad Defender case. However, with the iPhone 4, Otterbox streamlined the design. I’ll admit the iPhone 4 is beautiful naked, and I can respect how Otterbox wanted to get a slimmer case so the 4’s design could shine through.problem, though,  is the silicone overlay. It’s much thinner than previous models. I can’t explain why, but after a few weeks the overlay simply wouldn’t stay on its hard shell skeleton. The overlay slipped off in my pocket and despite valiant efforts and multiple replacements by Otterbox, the dock protector would never close properly. The case’s poor design combined with poor materials leaves my iPhone unsatisfactorily protected. I’ll come back for an improved design, but in the meantime I need something better.

Griffin Survivor ($49.99)

Griffin has entered the market with its “k” case, and it’s an outstanding design that seems to copy the old 3G/3GS style of the Otterbox Defender. Griffin claims it’s tested and certified to meet or exceed U.S. Department of Defense Standard 810F and U.K. Department of Defense Standard 00-3. Looking up that standard, it’s pretty impressive, but I don’t intend to go to war with it, just survive the (sub)urban jungle.

The charm (and one critical flaw) of the Survivor involves the silicone overlay. On the corners it’s reinforced with close to a ¼ inch of protection. Wow. Drop it on the corner and it literally bounces off the floor (yes I did try it with a live iPhone 4). It also not only covers the headphone jack, but has a plug to provide a seal making it unlikely water or other debris will get in that port. The dock cover also has a plug creating a seal, and the sides have a small series of holes to allow the sound to travel out. The home and volume buttons are completely covered, and the rotation/mute button uses a flap for protection. All of which is very good.

The critical flaw is the camera protector. It forms a great seal and protects the camera from scratches and debris. The problem is remembering to remove the flap when pulling out the camera and having to hold it while taking pictures. The only way to take pictures is to manually hold the flap open while taking shots. I pondered more than once simply removing the flap entirely, but ripping it off was hard and I gave up. I then realized that if I really want to protect my iPhone, I can’t leave this critical port uncovered. Griffin has a video showing all the extreme things they did with the case.

Ballistic HC Series ($29.99 at current sale price)

The final case I tested was the Ballistic HC Series. Similar to the other extreme cases, this also offers three layers of protection, but is much slimmer than the Survivor. Its silicone overlay does not protect the camera, and offers slightly enhanced padding on the corners. The flaps protecting the headphone jack, dock and mute/rotate switch do not form a full seal like the Survivor, but close significantly better than the Otterbox. The main flaw is that it is nearly impossible to remove with a coin or other implement. Most users probably will just keep their iPhone in one case, but I have various docks and battery extenders and often have to take the iPhone out. Both the Otterbox and the Griffin, on the other hand, were easy to open.

If you do get one of these extreme cases, I recommend Cable Jive’s dockStubz to help your new iPhone case work with standard dock connectors, as many iPhone peripherals expect a flush connection with the 30-pin connector. CableJive also makes a dockXtender which works in situations in which the dockStubz doesn’t. Of all the cases, the Ballistic had the hardest time connecting items to its dock connector.

So which case was my favorite? Obviously I was unhappy with the fatally flowed Otterbox Defender, and went back and forth between the Ballistic and the Griffin. Ultimately the Griffin won out. That extra protection and tight seals far outweighed the annoyance of the camera flap.

Disclosure: All manufacturers provided samples of the cases. Some manufacturers we contacted for this roundup were unable to provide cases as they were modifying designs to accommodate the Verizon iPhone.

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Still wanting to experience HD Radio as inexpensively as possible, I recently purchased a Sony XDR-F1HD HD Radio Tuner and, despite owning every cable known to human-kind, I lacked the RCA-male-to-3.5mm-female cable required to directly connect the tuner to my desktop speakers. Not wanting to trudge down to the family room to hook it up to the stereo for testing, I got out my trusty Griffin iMic but did not want to crank up anything as complex as Garage Band just to do listen to the radio. While I could have used something like Audacity, that program is overkill for the task I wanted to perform.

Then, I remembered that Griffin provides a free companion tool for the iMic called Final Vinyl [direct download link to 2MB disk image]. This tiny utility lets you choose any input source (an iMic is not a requirement for using the program as it works with any standard OS X input source) for monitoring, recording and in-stream effects manipulation. I really just wanted to “play” my Sony through my Mac just as I would use the radioSHARK, so I fired up Finyl Vinyl, made the appropriate configuration changes and enabled the monitor feature (highlighted in yellow):

Instantly, I was listening to KPLU-FM‘s Jazz24 HD Radio channel with practically no effort. Just to give it a try, I hit “record” and captured a very short sample [364 KB MPEG-4 audio file direct download] from the broadcast to show just how clear the signal comes through and how well the application does its job. While it will never be as straightforward as the radioSHARK when it comes to scheduling tuning and recording, Final Vinyl is a great way to solve simple audio routing, monitoring and recording needs.

One could argue that there is no need for either an HD Radio receiver or this handy setup given the plethora of internet radio streams available. While it is true that there are many streams to choose from, the physical radio does not require any extra bandwidth consumption (which is not a trivial consideration given the introduction of enforced bandwidth utilization limits by providers such as Comcast) and the digital radio source has had many fewer artifacts than the online counterparts have had (remember, “HD” does not stand for “high definition” so there are still imperfections).

If you have an alternate audio tool to suggest for this simple job (preferably one that is scriptable) definitely let me and other TAB readers know by sharing your suggestions in the comments.

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