Just a day after the developer of the popular iPhone Facebook app turned his back on the project, another high profile developer has walked away after expressing dismay at the reviews process.

Rogue Amoeba, the firm that makes the popular Airfoil software for the iPhone, had its Airfoil Speakers Touch 1.0 software approved months ago by Apple, but then discovered a bug which they duly fixed by creating an update, version 1.0.1.

Paul Kafasis, chief executive of Rogue Amoeba, explained in a blog posting that, despite the new version being merely a bug fix and identical in functionality to the original, Apple took more than three and half months to approve it.

He added that a key reason for the delays was that the app used "Apple logo and Apple-owned graphic symbols", even though it used them according to Apple's own fair usage rules.

"Apple is acting as a gatekeeper, and preventing you from getting the software that developers such as ourselves are trying to provide you," wrote Kafasis.

"We wanted to ship a simple bug fix, and it took almost four months of slow replies, delays and dithering by Apple. All the while, our buggy, and supposedly infringing version, was still available. There's no other word for that but 'broken'."

Kafasis and his firm seem not to be alone in their frustration with Apple's App Store approvals process. Joe Hewitt, who developed the hugely popular and high profile Facebook app for the iPhone, quit the ecosystem, telling TechCrunch: "I am philosophically opposed to the existence of their review process."