No way, that G310 looks awesome.
I'm a fan of the G310GS too, but for some reason it's seriously delayed. They were showing it last year already here it is end of this year and it's still not for sale. It's probably taking them this long to figure out how high of a price they can get away with.
Edit: BTW, I still love a F800GS. I just never got one because most are $10K used and just not a good value. And they are a little on the fat side too, which is why the G310GS excites me.