Today's Nexus One may be the hottest keyboard-free Android smartphone on the market today, but it doesn't exactly have the hottest network support. That looks like it'll be changing soon thanks to Walmart of all places, which has put up a "Coming Soon!" page for the Nexus One, listing an impressive suite of wireless bands including 1xEvDO for 3G on Sprint and Verizon and UMTS/HSDPA 850/1900 for 3G on AT&T. Could this finally be the network-agnostic smartphone (or smartphones, as the case may be) that Google has wanted, or is it just a case of some optimist
