Just saw this:
Samsung on Thursday introduced its Galaxy Tab, a 7-inch tablet PC powered by Google's Android 2.2 "Froyo" operating system.
Amazingly, this powerful tablet is also a phone - although it's a huge one. In its press release, Samsung said "the Samsung Galaxy Tab turns out to be a perfect speakerphone on the desk, or a mobile phone on the move via Bluetooth headset." Clearly, you're not supposed to hold this thing up to your head.
....See here for the rest:
http://www.pcmag.com/article2/0,2817,2368617,00.asp
more here:
http://androidcommunity.com/tag/samsung-galaxy-tab