E3 apparently showcased some Megaman 9 for WiiWare, the most impressive thing I took away from this is how accurate they stayed to the capabilities of the NES hardware in terms of using original graphics and making music.
Also if you are interested here's a developer commentary from one of the developers who was at E3, believe they are talking about "Plug-Man" stage.
how do I report a buggy problem, I use an older jnes v 0.51 and the screen is fine but with the latest version, parts of the black background are turning grey with some games, could you look into it