Recently discovered a pretty awesome app for "iDevice", i currently use it on my iPhone4 and it works like a charm.
The app is called "EveryAir" and costs 4,99$ but it's well worth it!
I've tested almost every other RDP app out there and not a single one comes close in performance & quality.
With this app you can run any game on your computer and then stream it to your iPhone,iPad, iPod you name it!
Sofar EveryAir only works with local ip adresses but this is an issue i know the devs are working on, making it fully "remote" or real internet access.
Dev Homepage: everyAir