AppleInsider reports that Apple has rejected Greg Hughes' iPhone app "Wi'Fi Sync". In this case, the app didn't break any of the AppStore rules in particular, but Apple made clear that this kind of app was way beyond they could approve.
From my experience, I keep coming to iPhone apps that synchronise with my Mac. Wi-Fi Sync was able to transfer music files; It opens iTunes to sync wirelessly without using any cable. This could be particularly convenient for iPhone backups and updating iTunes playlists quickly. I have one playlist where I include albums to discover; it would make a lot of sense to be able to sync my latest albums to my iPhone. This time, Apple has a point and acts under the premise that they are there to control everything. Maybe they needed to stopthe first one before an avalanche of sync apps, or perhaps they want to include it in iPhone 4.
"While he agreed that the app doesn't technically break the rules, he said that it does encroach upon the boundaries of what they can and cannot allow on their store," the developer said. "He also cited security concerns."