I run an online retro games store in Japan and we have had a total of 6 FT towns systems go through our store. What is amazing is everery single one of them would sell in the first 12 hours after we put it on the shop. There seems to really be a demand for this system. Perhaps it is all the adult games?
Anway, here are the games that we have for it:
http://www.risingstuff.com/store/index.php/cPath,11/
From the games I have seen they seem to come in 3 catagories:
1. Porn games
2. Ports of western PC games
3. Really good arcade ports
So I can see why the system would be popular.
And yeah a surprising amout of games are in English or have the option to switch to English despite the system never being released outside of Japan (perhaps they hoped to?). One of the games everyone always tries to order from us is a fully voiced (in English) Ultima game that haver came to any other system. The only games I have spent any time with (while testing systems) are Sim City and Splatterhouse. Both of them are excellent ports and Splatterhouse is probably the best home version ever released.