The Halo mimobots don't come empty, they'll contain Halo-related content like wallpapers, screensavers, soundBytes, unpublished pages of the upcoming Marvel Halo comic, sections of the Halo 3 strategy guide, excerpts from the upcoming Halo novel and an exclusive episode of This Spartan Life. The USB 2.0 drives are PC, Mac (Xbox 360, PS3) compatible and come in three different capacities: 1GB ($50), 2GB ($70) and 4GB ($110). Mimoco also has a Star Wars and Happy Tree Friends series too. Definitely a nice alternative to boring flash drives, and if you really want one it's probably not a good idea to wait until Oct. 18. Wonder if there'll be Brute and Arbiter versions next?