Well, I had an interesting day today...
In the middle of collecting squares across the San Jose valley, OTW barfed with a "Well that's embarassing! We've notified ourselves of the problem. Sorry about that!" and shut down.
Now, every time I attempt to run the game, I get two of those error messages, then the app shuts down after 30 seconds or so, having never left the BNID startup screen.
There seems to be no way to recover - I have tried turning the phone off, using WiFi instead of 3G, even connecting through Zune... in fact, even with no connectivity at all, the app behaves the same.
However, the app does run well enough to pop up toast telling me I'm being attacked... even though I turned off notifications.
If you haven't upgraded to 188.8.131.52, I'd suggest holding off. I sure I wish I did.