NTT Docomo is releasing a new phone this winter for Japan and it's called, the Fujitsu F-04B Separate Kentai, which lets the keyboard to split away from its display. Syncing wirelessly via Bluetooth allows the keyboard and display to be separated and should prove to be a neat and unique feature.
With this phone, a user can attach a 854 x 480 projector in place of the keyboard. Unfortunately there is no word on pricing or availability and will more than likely be a release for Japan only.
via:
Fujitsu F-04B separting phone with pico-projector - Specs, reviews and prices.