thanks for the heads up

* 4' Screen (at least, not necessarily touchscreen), >200 ppi * Physical control (at the top) * Replaceable battery * mSata support * Wifi support (802.11 ac), would be cool to listen to music from PC/NAS via UPnP/DLNA  * Open-source firmware * Price <450 USD   Size doesn't matter 

I'm considering gr07. Is it going to be a reasonable upgrade from yamaha eph-100? 

My Yamahas served me 7 months, I was really enjoying them, unfortunately left ear isn't working anymore. Driver flex was an issue since day 1, and I believe this was the major cause. Changing ear tips to smaller ones may prolong the life, though. Don't try to disassemble, hint.