That's a very attractive price point. And if it really does supply 5V, this tiny deck plus a set of DPA lavs would make a killer two-channel rig.
If you are recording two channels, it's a definite step backwards from the MMA-A -> iPhone (with Metarecorder) setup that's been around for six years. That will do 24/96 and, with my old iPhone, run over 10 hours. Unless the preamp or A/D clearly outclass the MMA-A, that would get me interested again. Waiting for a convincing review to say that.
The sample rate limitation to 48 kHz is a bit odd, especially given that it can record in 24-bit fixed and 32-bit float formats. I wonder what chips they are using that can't do those things at 96 kHz.
Comparing specs, PR-2 EIN and dynamic range are 9 dB better than the MMA-A, but strangely, THD is worse by about the same amount. I will be interested to see some proper third-party measurements of this thing.