Maybe? From what I've read, Python will run. I would assume there will be an mplayer built (or you can use a different audio player). So the audio should work at least. As far as video, no. I don't know if there will be support for flash 10 on the N900, and the flash support doesn't matter anyway because all the mlbviewer code to do the video is no longer valid since mlb changed stuff at the start of the '09 season, so that's two strikes. I don't have any current plans to buy an N900, so I won't be able to test it.