do you think this is a good cellphone deal?

[CaitlinJ]

http://cgi.ebay.com/NEW-Sidekick-3-Danger-Unlocked-T-Mobile-ATT-Smart-Phone_W0QQitemZ180323169164QQcmdZViewItemQQptZCell_Phones?hash=item180323169164&_trksid=p3286.c0.m14&_trkparms=72%3A1234|66%3A2|65%3A12|39%3A1|240%3A1309|301%3A1|293%3A1|294%3A50#ebayphotohosting

i'd be putting an AT&T sim card in it.