There are actually two new models the G01 and the G02 the G02 just has a bigger hard drive. Onto the G01 though, so it has a 4.3-inch screen, probably touchscreen, and a 30GB HDD (the G02 has 40GB).
There is also Bluetooth, SD/MMC card support, 2, 2.5, and 3 dimensional maps, and a USB 2.0 interface. There is also obviously support for a few multimedia file formats, sure you could fill 30 and 40 gigabytes with nothing but routes and maps, but you probably won’t.
They actually don’t look too bad either, sucks that they appear to be Europe-bound only. They will drop in November and the G01 will run you 500 Euros.