If you're a developer running the iPhone 3.0 beta, you may have gotten a special note in your email today -- and judging by the number of you who let us know about the news, there's plenty of those emails going around. Apple is testing the long-awaited push notification feature of the 3.0 software (and the back-end servers that provide the updates) with a build of the Associated Press news update app. If you got an email with a promo code and you've been putting the app through its paces, do let us know how it's going.

Push notification is all well and good, but what about true background processing for those critical applications that need always-on connectivity? More on the prospects for that capability in our next post, coming up shortly.

Thanks to everyone who sent this in.

[H/T to Engadget]

This article was originally published on Tuaw.
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