The new iPhone 3G S will probably be torn apart and posted all over the internet with its true specs but looks like T-mobile has released some of the specs which Apple has not:
The relevant numbers are 256MB RAM for the OS, double that of the 128MB in the original iPhone, and a 600MHz processor, up from the pedestrian 412MHz of the first two models. The added RAM alone probably makes a huge difference — if you have ever added memory to a Mac you’ll know how much OS X loves it some extra gigs to play around in. And that processor neatly leapfrogs the second-gen iPod Touch’s 532MHz. It also shuts up anyone comparing the iPhone to the Palm Pre, which has the exact same number of megahertz: 600.