Looks like an EP1 with viewfinder and focus issues mostly sorted, good to see some progress in this format.
If not for one thing, the GF1 would be an easy choice over the EP1 for its modestly higher price. The one catch is Panasonic's insistence on in-lens OIS stabilization only, so that stabilization is only available with three Micro Four Thirds lenses (not even including Panasonic's new 20/1.7), plus a couple of Panasonic Four Thirds SLR lenses that are probably now discontinued. The EP1 in-body IS is available not only with all six mFT lenses, but with any of the many other lenses that one can attach with an adaptor.
There is a strange split on AF too: the EP1 AF works with all Four Thirds SLR lenses (though it is probably very slow with the older 4/3 lenses, not designed specifically for CDAF) while the GF1, like all Panasonic mFT bodies, offers AF only with lenses designed specifically for CDAF. But at least when the Panasonic mFT bodies do AF, they do it faster than the EP1!
So this time around it is Olympus that cares more about backward compatibility, having sold a lot more Four Thirds SLR lenses than Panasonic.
As to the accessory EVF: I am sticking with my previous prediction that only a distinct minority of GF1 customers will bother to buy it. Apparently a high quality EVF like that of the G1/GH1 does add significant bulk, perhaps because a strong optical magnifier is needed to get a large image from a tiny EVF screen.
