The T-Mini works on your PS2 but can also be connected to a PC via USB, so it's essentially two controllers in one.  This is a pretty nice feature, especially for those of us who have grown wary of big, bulky gamepads for the PC.

If only it weren't so, well, mini!

Of course, some people like small, so I decided to experiment with my children (what else do I have them for anyway).  My thirteen year old is kind of a little guy and he loved the T-Mini Wireless.  So, if you have big clumsy hands the T-Mini wireless controller may not be for you, but if you're of the opinion that size doesn't matter then there should be nothing to stop you from enjoying this cute little controller from Thrustmaster.  Prices seem to be in the $30.00 - $40.00 (US) range also, so it won't cost you too much to get your mini thrust on if that's the way you want to play.