MacBook Pro with 4G RAM

I just updated my MacBook Pro to 4G RAM ;D

I've got the version with 2.5 Ghz, 512MB videoram and the multitouch-trackpad..
and NOW 4Gigs Kingston RAM (KTA-MB667K2/4G) !!

They work really fine and already by booting up you notice that it works a bit faster...

Here a screen to demonstrate: