On other hands I would actually like to see more HDremix games than PS conversion. SF Alpha's, X-Men and Marvel VS Street fighter, and SF EX plus Alpha would make great HDremix titles. I think that the ResidentEvil series would do well, some fairly priced/basicly really cheap money Megaman titles would be good for PS titles. I also believe that some new 8bit Megaman titles would do quite well, I really enjoyed the last one.
It would be kind of hard considering that would be a Nintendo based game, and I don't think they would just hand over the rights to Sony that easily. I'm also sure this site has tutorials on how to run SNES and other emulators through your PS3. It would take some time but you'll have your SNES games you want.