Hi there manutoo, thank you so much for single-handedly developing this greatest tennis video game in the history of mankind. I would like to ask you some questions regarding the game:
1) Have you considered adding the demo to the Steam page of TE4? Not all potential buyers will be attentive enough to know that there is a free demo for all platforms on the official site of managames. Adding your demo on Steam would considerably increase the chance that they try TE4! As a bonus, you get stats such as how many players download your demo from Steam and how long they play it.
2) The XKT patch seems to do a wonderful job to complement the game. Would you consider making its features (if not all, due to licensing issue etc) part of the official game?