Got to spend some time in the Fiio booth @ CES, which was really cool, chatting with the guys about the X3 as well as new amps (E17, Mont Blanc).
X3 had a very nice form factor... a touch shorter than the F806, and about twice the thickness. Not bulky at all and very pocketable. I did some listening with my Fitears, and I got the impression it provided very smooth and detailed sound even though I was listening to music which was totally unfamiliar to me. It did hang up and crash a couple times... definitely still in engineering mode, but was simple to navigate around and menus were very intuitive. With the (hopefully) solid sound quality, highly transportable form, memory expansion, and decent battery life, seems it should still be a winner after the development time it has been through.
Kudos Fiio guys. I had a great time in the booth.

F806 paired with Mont Blanc amp:


(apologies for not wiping down all the fingerprints before snapping the images!)
Edited by cn11 - 1/13/13 at 7:33am