Quite some time yea! There's plenty of things now that work like this. - Samsung S3 has usb OTG out. Just connect some small dac/amp, like the HRT microstreamer / graham slee bitzie, with a USB OTG cable. - Fiio x5 does the same, though via optical out. - Asus Transformer T100. Fully fledged PC that's also a tablet. It's got full windows 8.1 and USB OTG out in the tablet itself. The removable keyboard has a full on USB output. I use the Last one.
4/30/14 at 8:45am