Hmmm, was sorta interested in the TF10 just for the hell of it, but I understand it has fit and build issues (the housings are really big as to accomodate the BA drivers of the time). So I skipped out. And... I'm not sure if I'd enjoy another V shaped phone at the moment since recessed mids bother me a lot. I wouldn't mind trying out a DBA-02 to see what all the fuss over treble sparkle is about though.
I have actually auditioned the X10's for a few weeks, and didn't enjoy them initially. I find they are pretty tip dependent, and the Sony Hybrids I had on them made them sound congested and muddy. They improved a lot once I played around with the tip selection a bit, but I never liked them as much as the Radius DDM or RE262 when I ABed them, they were just a bit too warm and treble/mid recessed for my liking. Another issue is they don't have very good strain relief at the jack nor the entry points on the IEM housings. In terms of comfort though, man those things just disappeared, they were so small and light. At their MSRP, there are definitely better alternatives, but at that Black Friday price point though, they are pretty much a no brainer. If you're coming from more modest phones, you're going to love them.