Joe Hewitt’s been unhappy with and outspoken about Apple’s app approval process since about the time he started working on the Facebook app. Well he’s finally had enough. According to a recent, tweet he’s done working on the app and ready to move on.

Time for me to try something new. I’ve handed the Facebook iPhone app off to another engineer, and I’m onto a new project.

Hewitt also said in very clear language that he left iPhone development because of Apple. Speaking to TechCrunch he said, “My decision to stop iPhone development has had everything to do with Apple’s policies. I respect their right to manage their platform however they want, however I am philosophically opposed to the existence of their review process.” As are a lot of people, but to this point no one with Hewitt’s resume has made the same decision (Arrington left the iPhone for a different reason and he’s not a developer).

Hewitt’s in a better position to “quit” then some developers, though. He’s got a swanky gig at Facebook, where he’ll still be developing after his announcement. A house like Tapulous, on the other hand, is making enough money off the App Store that it’s unlikely it will leave, and we probably wouldn’t hear about one of its developers quitting because of a philosophical opposition like Hewitt’s.

Instead we’ll probably continue to see the trickle of policy changes Apple has made over the last several months. The most recent allows developers to see real time status updates about the app, so when it’s sitting in “waiting for review” you can start throwing around some lawsuits.

Tapulous recently released it’s follow-up to the very popular Tap Tap Revenge called Tap Tap Revenge 2. Tap Tap 2 comes with some great visual enhancements as well as a much larger library of free songs.

The download catalog features over 150 free new songs. There’s something for everyone: rock, dance, electronica, pop, hip hop, even country music. The catalog includes hits from Death Cab for Cutie, The Crystal Method, Daft Punk, Weezer and Nine Inch Nails. Every Thursday, we add more awesome free tracks from featured artists.

The overall game play experience is improved. They have added “tap and hold” and “multi-tap” on some of the more difficult levels. Also, Tapulous added a few new features like a career mode to go along with the online play.

Another nice addition is the kids mode. If you’re comfortable handing over your iPhone to you little one, they will definitely enjoy playing at a level appropriate for them.

Tap Tap 2 looks to be a great follow-up to the ever popular Tap Tap Revenge. I would definitely recommend this app for everyone.