Is iphone iPhone 3G compatible on ITunes 10?

I currently have an iPhone 4S that I will be giving to my mom. She has an iPhone 3G. Will I be able to backup and transfer her data over to the iPhone 4S? The reason I ask is because I thought ITunes 10 wasn't compatible with the old IPhone 3G 4.0 software.

Hi, you can try 4Videosoft iPhone Transfer Platinum to transfer iPhone 3G files to iPhone 4S. You can transfer photos, movies, music, etc. For your iPhone. Also, it enables you to transfer files between iPhone and computer. It's very easy to use. You can find it on the website and have a free try.