Does anyone know if this api is meant to be ready for prime time? Since I started trying to use it a couple of days ago, I've had nothing but trouble receiving notifications, mostly using long polling. The server responses vary between a 403 (bad IM cookie or URI credentials), a plain old rejection by the server when trying to connect, with no http response, and a good response. I know the URL credentials are OK because its sending exactly the same request each time, and sometimes it fails, other times it works! Using explicit periodic polling seems to be a bit more reliable, but only when the period between polls is > 30 seconds or so (not exactly a real time messenger!). I'm about ready to give up on it and move on to something else if there is no sign of this ever being fixed.