I am thinking that the 12–35 on the OM-D will be the ultimate travel setup, having just returned from Thailand (nothing special to show, sorry).
I did have my OM-D lock up at the worst possible time (4-member family on single Honda 90 alongside my taxi—lockup Hell!), so am looking forward to getting Jim's grip (that allows instant dropping of a battery, like dropping a clip from a pistol).
I will probably get a second body; I have sold the other small-form cameras as noted previously, but for some reason am still hanging on to the GXR (I guess one reason is that its flash triggers strobes completely unproblematically, and the 50 macro is a great little setup).
@ etrigan: the Sony/Panny lenses are so good, IMHO, that I will be selling all my CV lenses—I do not feel that the IQ/signature/drawing difference is enough to forgo the convenience of fast AF, so do not need peaking, personally.
My OM-D lens lineup is the 12/2, 20/1.7, 25/1.4, and the stellar 45/1.8 (and the 45/2.8 macro). I will probably sell the Panny-Leica 25/1.4, if anyone's interested; I feel the convenience/ergonomics of the 20/1.7 outweighs any IQ advantage.
I do hope that Olympus solves the lockup problem, but apart from that, I like this little toy.