Join Date: Feb 2000
Location: Menlo Park, CA, USA
Programs: UA 1MM 0P, AA, DL, *wood, Lifetime FPC Plat., IHG, HHD
Posts: 7,174
no phone needed
facetime doesn't need a phone number at all, otherwise it wouldn't work on the ipod touch and ipad as it does.
Just make sure you have a second email address listed in the facetime settings, and you can be reached that way just fine. you'll have to be on wifi though, unless you jailbreak.