Hate to repost but forgot to give u some links From here you can read and compare http://www.davespda.com/hardware/pdaphone/phoneedition/index.php Amazon is currently offering a promo of Tmobile which will allow you to get a Tmobile MDA for free after $50 bucks in rebates http://www.amazon.com/gp/product/bav-phone/B000EMFXF6/ref=w_z_lp_ph_sp1_l3/002-8823952-6817600?ie=UTF8&stage=79&path=planFirst