I'll definitely try the Steam client - I'm fed up with Firefox downloading the Flash version every time no matter how I tweak it! Also Flash doen't seem to do well when it's doing 2 things at the same time - when it contacts the server to load maps, my radio player (also Flash) seizes up until they're retrieved.
Noooooooo.... now I have to go be all completionist again. If there's a "defeat Blitzkenripper solo" achievement it had better be retroactive. >_< Also, there WILL be a Karen elf badge for trading cards, no?