Seems that April 6th ship date that GameStop posted back in March was a bit off, but hey -- beggars can't be choosers, yeah? SanDisk has just announced that it's now shipping the planet's first licensed Xbox 360 USB flash drive, which just became useful for easily transferring gamertags, game saves, map packs, Arcade downloads, etc. from one console to another. The device is pre-configured for plug-and-play, and SanDisk is even throwing in a one-month subscription to Xbo