If you speak Russian or need it for your brand new Windows Phone 7 device, you can thank XDA member denominator77 for his great work. The alteration works on LG and HTC devices so far and is being developed quickly. The program turns Spanish or German keyboards into Russian one.
Here are the notes from the OP
To learn more about this mod, check out the discussion thread. There, you can download it and thank the developer for their great work.