Taiwan based smart phone maker HTC said it estimates T-Mobile will sell between 400,000 and 500,000 G1 handsets, with its Android platform developed by Google, before the end of 2008. According to a Wednesday report, the smartphoneƫs exclusive US carrier, T-Mobile, will order between 1.5 and 2 million units in total, sales of which are estimated to add NT$7 billion (the equivalent of about $218 mi