Multitasking, Folders, Wallpapers, Enhanced Mail, Enterprise
Comes in three different storage types. 8GB, 16GB and 32 GB
Support, Unsigned Apps, No Flash. Period. Battery life is not up to par, dies very fast.
The newest version of the iPhone set to come out this summer. There's multitasking a refreshed interface, and literally hundreds of other changes. Fast app switching, app folders, custom backgrounds.
3G, the iPhone 3G supports faster 3G data speeds via UMTS with 3.6 Mbps HSDPA, and assisted GPS.
3GS, The iPhone 3GS has improved performance, a camera with higher resolution and video capability, voice control, and support for 7.2 Mbps HSDPA downloading (but remains limited to 384 Kbps uploading as Apple has not implemented the HSPA protocol)
Pros, The battery charge is great. It works for several hours on one charge, but be prepared to spend big bucks when it needs replacing. The iPod does function well and has tons of space. The click wheel seems to work very well and is sensitive to the touch. It is easy to work with iTunes and is user friendly.
Cons, The price. The iPod face and metal back seem to scratch just by looking at it. Cheap earbuds. iPod dock, doesn't come with the package and cost $69.00 for a piece of plastic. It's just a super expensive walkman where everything is extra.