nice service, but there was a problem with my first attempt to get the coins: "invalid BC address".
So the first address generated by the bitcoin program didn't work - 1Dn51Rn2tmvARcsYkPe7Aw1sCAXw5oKnR
That's caused by a bug in one of the technologies I'm using behind the scenes (Google's App Engine). If you try again the problem should go away.
I've got a couple of ideas on how to make it more reliable, but I'm still hoping Google finds and fixes the underlying problem...