if i buy this phone http://www.amazon.com/HTC-Magic-A6161-Quad-Band-Slot--International/dp/B002MUADZ8/ref=sr_1_1?s=wireless&ie=UTF8&qid=1296619624&sr=1-1 can i activate it on t-mobile's prepaid service for $50 a month? thanks
If i bought one of those cheap $20 prepaid verizon phones, could i switch my service over to a more advanced phone like the droid or another big name phone?