Have you seen the mobile device slated for use by the U.S. Census Bereau in 2010?
The device has Windows Mobile 5, an SD card slot, and a Fingerprint reader. It appears to be more rugged than a consumer device, but probably not as much as an industrial data collector. It also has a wireless modem on the Sprint network, and a dial-up modem built in for areas with no wireless.
It looks quite capable by todays standards, but I wonder what we'll think of it in two years.