I always worry about output impedances on smartphones, since they usually average from 10 to 30Ohms and do weird things with ba iems. Samsung's been a lot better about this lately though, with their phones all having around 4Ohm's impedance, which I find to be just fine for dynamic in ears.
If the DNA really sounds balanced enough in presentation and extension for your UERM, then I might have to go give the Verizon DNA a try with my Klipsch Custom 3 and see whats up.
Lately I've been considering a smartphone, but only for this cool little gadget:
Otherwise I'm not particulalry interested in being connected 24/7...but finally, 21st century management!
Edited by Sylverant - 1/23/13 at 1:35am