Agreed, with my new Arms spec I'm getting rid of more rogues now than I did before the patch.
So it is definitely still viable. : ) Personally I reckon the last talent Bladestorm has more to offer than Titan's Grip ATM, but I haven't tried out the new Fury spec so I can't say for certain.
Thankfully perception is now passive rather than you having to do anything for it.
Edited, Oct 17th 2008 5:19am by Zyven