I've been weirdly interested in portable headphones lately, but mostly in their looks, and not so much in their sound. The KEF M500 looks really nice, and feels really comfortable. I didn't plug them in and listen, though. I'm also looking forward to the Oppo PM-1, which I guess is supposed to be somewhat portable? The NAD Viso HP50 also has me curious. They look like protective ear muffs, but in a good way.
In a related manner, I've been sort of detached from IEMs lately. I'm supposed to be enjoying the UERM (which are very nice, indeed) but I only seem to be testing them in fits and starts, and can't seem to accrue any type of momentum with them. Instead, I've downgraded myself to laptop speakers to listen (not music, hardly got time for that these days).
I have a pair of the KEFs. They are indeed very pretty and very comfortable. I'm not 100% sold on the sound signature compared to my Amperior, Momentum or ES10 though. Whenever there is a scoop in the vocal range I tend to feel a little unengaged.