It is fun how different companies tackle jail breakers. Some sue them, other hire them.
Peter Hajas, the guy behind Mobile Notifier, perhaps the best and most Apple-like solution to notifications on jailbroken phones, has quit his day job and has gone off to work at a "fruit company" in CA, according to a tweet he sent.
In his blog, Hajas said, regarding his departure from the jailbreak development community:
"I can’t say why, but it’s worth it. Trust me. If you look around hard enough, you’ll probably figure it out."
He signs off by saying, "Until then, stay hungry and stay foolish," the famous way Steve Jobs ended his Stanford commencement speech in 2005.
Unless Hajas is just fooling around with all the Apple references, it's very likely that Apple brought him in to help develop as a part of the iOS team.
There's no way Hajas was involved in developing iOS 5, however, even though Apple's solution might end up looking a lot like his creation, Mobile Notifier. The guy is clearly very talented.