DSI enhanced games will work on both ds and dsi, however they will lack features when played on a ds dsware games cannot be played on anything other than the exact dsi they were downloaded on. they're there for collectors only, since they're effectively useless
Agreed. Personally I would have answered the question by comparing it with the gameboy & gameboy color. You can still play old gameboy games on the newer gameboy color. (backwards compatible) About the second question, just try it out and if you encounter issues... please be sure to go to the technical help section of this forum.
Thanks all for the info. New to site, so don't know how it works. I will try out and feedback any issues.