FWIW, I recently got the GH1, a forerunner of the G2. I think it's an excellent choice for a backpacking camera, and the G2 will likely be even better. That said, these are not exactly small cameras, nor is the GF1, so be sure your size expectations are realistic. I'm used to packing a Nikon D80, so to me the GH1 is welcome in that regard. I've looked at the GH1 and GF1 side by side in my local camera shop. The GF1 is slightly smaller, but the sizes are not really all that different. I think the GF1 is likely a better camera for street photography though, especially with the 20mm pancake. That combo can fit in a coat pocket, and using the GF1 won't draw attention in public the way the GH1 will. The GH1 looks like a serious DSLR, especially with the kit 14-140 lens. And you hold it to your eye like a DSLR. The GF1 looks more point and shooty, and you're composing with the LED, so you just look like a tourist taking grab shots. But when you're hiking this aspect doesn't really matter, and with either camera you'll likley use a neck strap so it will be handy all the time. In that mode of carry the modest amount of extra bulk of the G1/GH1/G2 vs. the GF1 is negligible. And the much better EVF is a definite plus. And the G1/GH1/G2 feels better balanced with a bigger lens like the 14-140, partly due to the better grip. I recently did a bikepack trip with the GH1 hanging from my neck all day in a padded case as I rode my bike. By the end of each day it was getting a little heavy, but it was still very doable. I really don't think I could have done that with my D80, at least not with an equivalent lens. I'm liking m4/3 a lot so far.