Registration memory (RGT files) can be converted so the Tyros 2 will read them.
I've downloaded quite a few registrations from the T1 and they work fine.
Also styles and sounds/custom voices from the T1 can also be read by the T2. It also does 9000 pro as well, it's all good stuff.

[This message has been edited by Craig_UK (edited 03-11-2006).]