At the risk of sounding condescending, this is currently a PC-only game until the PS3 port. Why would you even consider the possibility that it wouldn't use a keyboard and mouse?
Edited, Jan 3rd 2011 1:41pm by Uryuu
Not to sound... oh wait I'm going to be (just not to you)
Sadly many game companies have abandonded PC gamings greater customization abilities lately and have created tons of console to PC ports which completely suck with M&KB and clearly require a controller to play with minimal headaches.
A recent example would be SquareEnixs own Front Mission Evolved, I tried to play it M&KB but sadly find the controller to be more responsive. There are lots of other games in the last 5ish years that are even worse...
FFXI:Sylph - Perrin 75 Hume THF; Retired (At least from my use any way)
EVE Online:ScraperX; Retired
WAR:IronClaw- Peryn SW;SkullThrone- Grymloc BO; Retired