If you're the proud owner of a Samsung Focus or Omnia 7, you can scratch a pretty major item off the list of basic features missing from WP7: USB tethering. A couple of sites have come upon a quick and relatively easy hack to enable using your handset as a 3G modem on Microsoft's new platform. You'll need to dial up ##634# to get into a diagnostics menu, switch over to a "Modem, Tethered Call" mode and deal with a few more prompts along the way, but the end result is that you'll have a pretty much automated USB tether setup on your hands. Our own testing on HTC's Trophy and LG's Optimus 7 hasn't