I've owned an iPhone 3gs, and now I have a Samsung Galaxy S2. Each one had its pros and cons. The iPhone's OS is a clinic in elegance, simplicity, and buttery smoothness. The GS2 (all I can use to compare) is rougher around the edges, but you can essentially do anything with it. Want to use a different launcher? Have at it. Want to transfer files to/from any computer with the simplicity of a thumb drive? Simple. Want to edit files, filenames, ID tags, etc. right on the device? Of course! Want to easily catalog pics in whatever way your heart desires? Meh, kid's stuff. Apple doesn't really allow any of that!