I recently unearthed an old Acer Android phone sitting in my house that runs on Gingerbread 2.3.5 and it came with a 4GB SD Card but little internal memory. I immediately thought of either rooting it and put voodoo sound or in general try it as a new DAP.
Hardware-wise it's pretty old a single core Qualcomm MSM7227 (the same type used in the HTC Explorer/ Wildfire S/ Sony X10 Mini, and HTC Legend) not sure what the DAC used inside will be.
I haven't listened to it for long, but I'll probably post a few impressions back here a bit later.
BUT it did raise an interesting question for me.
Considering Android supports practically all format's of music (with FLAC support from 3.1 onwards) and the Google Play store, it can be Android's answer to the iPod Touch.
Although it is annoying some of the lower ended phone's don't support (or have very little) internal memory and rely completely on your SD Card for media storage. Sound Quality-wise I cant really decide yet since I haven't done a side by side comparison between any Android phone to any of my current DAPs.
Of course Sony's Walkman F or Z series already does this with great sound quality. But avaliability is limited in some countries, or not avaliable at all or just too expensive.
What do you think? Would you consider buying outright a low to midrange Android purely as your new DAP? Perhaps only try the prepaid phones or older Android phones that run 4.0.4 and above.