Today's Android app update provides the promised "streaming" function (via a mode toggle in the menu in the app). This then streams playback of already recorded files from the recorder to the phone. The files can be CD quality wave, or mp3. You can jump around in the files using the location bar.
Use case - you have the recorder installed on a tall stand, or otherwise not accessible, and you want to play back some bits of what you've recorded (say in the interval, or during a rehearsal or sound check). You could already transfer the whole file from the recorder to your phone and then play it, which could take some time, but now you can stream it without copying the whole thing, jumping around to sections of interest.
Downside - the meters don't work during streaming so you can't check what the levels were like. But presumably you would have already done that during the recording. And if you want to check the levels of playback without actually listening, you can do that already if you turn off streaming (so the recorder plays back locally, but silently unless you had a connection to its headphone output).
I tested streaming over about a 15 metre range without problems. It's slightly buggy in that at one point the playback point couldn't be moved to elsewhere in the file, but exiting the app and running it again fixed that.
A pretty neat feature!
Now let's have that "mark" button! (Why? Because when recording a live show, particularly if near the limit of the wifi range, if you pause or stop recording then there's a chance that you might not be able to restart it if you lose the wifi link. So it's prudent to keep recording all the time, and mark the points where you would have paused with the forthcoming "mark" button, then edit out the marked sections later).