Some of the best utilities are the ones that do simple things, but do them very well. That is the case with the Logitech TouchMouse for the iPhone. This free app connects with a Windows PC (s msft) or Mac (s aapl) over Wi-Fi, and turns the iPhone into a big multitouch trackpad complete with three mouse buttons. The TouchMouse user is able to completely control the PC or Mac using the iPhone. There is even a touch keyboard for text entry if needed. I don’t even need to tell you how cool it is to scroll around on a Windows PC using multitouch on the iPhone instead of a trackpad.
Why is TouchMouse useful? A number of scenarios come to mind — controlling a media center from the sofa is one, or how about giving a presentation and using the iPhone to control the slides? I tested the latter on both my Mac and a PC and this worked flawlessly. I was able to get as far from the notebook as desired, since Wi-Fi requires no line of sight, and advanced the slides at will.
Logitech (s logi) TouchMouse is free and in addition to the iPhone app — available in the App Store — a server application must be downloaded for the computer. There are Windows and Mac versions of the server software at the TouchMouse web site.