Don't know if this has already been posted but very good program.
Don't have to download anything to your phone and you get remote desktop via safari on your phone.

PC2ME.net - iPhone software that lets you remote desktop from your iPhone. download the program and install it on your computer. Then just go to the website they give you and you can control your desktop via iphone.

You get a 15 day trial and then you can buy it for like 2 bucks or something. Didn't read that yet.