Not mobile but certainly tech related- Poseidon Resorts plans to build the first ocean bottom resort in the Bahamas. The luxury hotel will be built in Florida and transported by barge to the assembly site. Suites are 550 m2 and will run a measly $1500 per night, with each offering a stunning view of the marine life around the module as rendered in the photo below. Earliest expected completion date late 2006.
(via Gear Live)