Sega Superstars Tennis is looking really fun
Then again, it IS being handled by Sumo Digital, who ported Outrun 2 SP and Virtua Tennis 3 to consoles, and did an excellent job on both, so I wouldn't expect any less.
Too bad the Wii version doesn't have any online features…that would have made it a must buy. I guess I'll have to wait until it's released on PC or I finally fork over the cash for a PS3 or 360.
Or, I could just get the DS version, which is looking pretty good as well.