Hopefully I will have more time now for version 2.0. Currently I'm working on analyzer. Global prediction of the contents of registers and stack is practically finished. This was a very hard piece, and initially veeery slow, but today I've found the way to accelerate it by the factor 100+. Next I plan to implement known functions. Debugging engine will follow.
Of course, OllyDbg 2.0 will work on all existing versions of 32-bit Windows: 95, 98, ME, NT4, 2000 and XP. I don't know whether it will make sense to play with Server 2003 at all, and Longhorn is not yet ready.
Several weeks ago I've asked for help in the form of different Windows versions that I'm going to use for debugging purposes. Honestly, I haven't hoped for so many offers:
Windows 98 and/or 98 SE
Windows ME (Tony, this was a nice gift!)
Windows 2000 home and/or professional (thank you, Rudy! No such thing as a home edition?)
Windows XP home and/or professional (thank you, Peter!)
Windows Server 2003 (many thanks, Casey!)
And my very special thanks to Reinhard - his post completed my collection! So please send me no more Windows, now I have them all :)