I'm an at&t customer looking to throw my iPhone against the wall and grab the new Samsung Captivate. I'm really new to Android but from what I've learned by reading on the web is that manufacturers/carriers mod the Android OS. I can't find any detailed pros/cons on whether or not manufacturers are making changes that ruin the Android experience by adding/taking away features. I'm weary of buying the wrong phone. Can anyone help clarify this for me? Thanks.