Oh, I would not have done that. Valve has been, accourding to the Steam forums, neglecting the 360 when it comes to patches - or rather the patches are always late, if they come at all, due to Microsoft's handling of them.
Isn't that par for the course with Valve? The dirty failboxers haven't gotten any of the TF2 updates either, as I remember.
I haven't heard any stability complaints. I got it on the 360 so I could play with my dad. Last time I bought CoD4 on the PC and EVERYONE was on the 360, so it would be my luck that everyone switched back for L4D.
Me, Nick, Llyranor have it for 360