I'm a Virtua Tennis guy, but I've always been a fan of the series. :)
It does offer online support, and it sounds like there may be a really cool competitive tournament mode. The crazy Mini-games are one of the things I've enjoyed since Dreamcast VT, I am glad to see those coming back.
The first dev diary trailer went out recently (the one porkchop mentioned): http://www.gametrailers.com/player/47600.html
Obviously the Wii won't look as good as the 360 or PS3, but for me it's all about the gameplay...







