I am having fun with it, and it doesn't seem to be devolving.
Side note: I really want an iPad version. The interface doesn't even need to change at all, with the possible exception of making the airplanes a little bigger. I run it in 2x mode, but font rendering is massively ugly.
I want to bring Airendipity to iPad, but atm it's iPhone-only for the time-constraint reasons I mentioned above. I think iPad would be a great opportunity to stretch out a bit and carry a bit of the whimsical side a little further.