Members of Chinese Tetris community made few nice games.
First is Tetris EX by farter. This game has own rotation system that looks like mix of SRS, ARS and DTET. There is both flash and visual basic version. I like visual basic version better, it looks better, feels better and has more options.
website: http://t-ex.tk/
Other game is Infinitris by HX. From what i can see it's somehow based on tetris ex visual basic version. This game has lot of options, but it's all in chinese so i can't say more about it for now.
website: http://infinitris.tk/