It came with 1.6 on it.

I agree with stustaff: No way Android is the wold's best OS. IMHO it is garbage. Even Windows Mobile was a lot easier to work with and a lot more powerful. I've used PalmOS, WinCE, WM, Apple iPhone OS, and several proprietary ones on handheld devices over the past 15+ years. I would rank Android at the bottom of the list, at least as it is implemented on the Archos 5IT.