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Has anyone played with MicroPython and the PyBoard?

MicroPython is a rewrite of Python 3 to run directly on micro-controllers but it also runs on Macs, Linux, Windows, etc. PyBoard is a micro-controller that runs the Python3 REPL directly on the hardware with no operating system in between. I have ordered my PyBoard but I am wondering if any of you have already tried it.

Two recent opdcasts on the topic:
* http://www.talkpythontome.com/episodes/show/17/python-on-bare-metal-with-micropython
* http://podcastinit.podbean.com/e/episode-15-damien-george-talks-to-us-about-micropython

Looks interensting! The closest I've come to doing something like this is python on a Raspberry Pi.

I have a PyBoard, but haven't done much with it beyond trying the tutorials on (http://micropython.org). Although the PyBoard is very interesting, i would prefer the WiPy (http://wipy.io) which also runs microPython on bare metal but is capabele of connecting through WiFi. In combination with Pythonista this would mean that your iPhone / iPad could interface with low-level sensors.

I have a PyBoard and I really enjoy it. It does have some serious memory and speed limitations. I actually had to resort to writing some drivers for some of my hardware in C for both memory and performance reasons. That was not super easy either.
I got it to work with a $5 wifi chip so I can use it wirelessly as well.