I would like to suggest two improvements for PlayOnLinux:
1. Most users already have the Microsoft fonts installed (because almost all the web sites require them). It would be nice if PoL would let you choose the path to these fonts and make symlinks instead of downloading them.
2. PoL only lets you choose between two terminal emulators: xterm or konsole. Why not let the user type in the terminal emulator they would like to use?
Also, congratulations for releasing version 3 of PoL