Nokia 6101 / 6102
PTT feature
http://www.nokiausa.com/phones/6102/0,7747,feat:1,00 ... »
i'm pretty sure only sprint uses PPT and this phone doesn't work with them.
http://www.engadget.com/entry/1234000173060014/ »
the plans are 9.99 individual and 19.99 for family plans. it will be available oct 13, but this phone doesn't use the kodiak ptt, so it's not going to work on cingular.