It will be a shame they haven't improved the gameplay from Virtua Tennis. Fingers crossed. But some of those screenshots look a bit different from the Dreamcast version so hopefully they have made some improvements. If so, it will be a great game! The graphics are the best for sure.
I have Mario Tennis and it is very good, but finally there is a PS2 Tennis game that is better. One of the best tennis games: it's called "Slam Tennis" but it is only available on PAL at this stage. But highly recommended. Good graphics, some great courts etc. But it is the gameplay that is VERY GOOD! It is really a great game for competing against friends - singles or doubles.
I have written more about this game on another thread here:
I also have:
* Mario Tennis (Nintendo) very good gameplay but not as good as Slam Tennis)
* Smash Court Tennis (PS2) gameplay a little simple but great for doubles against friends,
* WTA Tour (PS2) the PAL version is excellent with a great world tour
* Centre Court - Hard Hitter (PS2) terrible
* Next Generation Tennis (PS2) Ordinary
* Slam Tennis (PS2) Very, very good !!!
* Virtua Tennis 2 (Dreamcast) great graphics but gameplay is a bit limited IMO