Main differences between the Panasonic G3 and GF3?

Going round in circles about what camera to upgrade to. Don't want to go as far as a proper DSLR, but like the idea of the "Mirrorless InterChangeable Lens Cameras".

Nikon 1 has a tiny sensor, and expensive.
Sony Nex 5N is expensive.

Seem to be settled on the Panasonic Lumix G, but GF3 or G3.

I know GF3 is cheaper, has no viewfinder, no hot shoe, no tilting screen, no mode dial.

Any other major differences? Or is the G3 really worth it, for those extra features?

Go to panasonic.com
compare the differences
then you can make an intelligent decision