Voodoo worked for me (coming from stock .905 rooted, straight update using the zip that was posted earlier rather than HoB). Restoring apks+data from my backup pro now....cannot believe how fast the phone is now -- I was never on any leak, so I never saw multi-core in action!!!
Nice ain't it? You can also force 2d acceleration in the options which gives you another speed boost at the risk of potentially having issues with apps that don't support it. I've not had any issues leaving it on. Also freeze the stupid bloatware by going into settings, apps, all apps. There's a disable option in there and you do NOT need to be rooted to do it. See my FAQ for more fun information.