I like the comment "I type as fast as I need"...its not like you can't set down your berry or that its some huge race to finish most things.
I know full well that I don't type as fast on my Curve as I do on my PC, but I'm fine with that, one of the prices to pay for Pinstack on the go!
Always good to be faster, but its not like typing faster on your BB is gonna benefit you in the same way that a strong WPM on PC will when job hunting.