IPhone 3Gs audio drift in Final cut Pro (but not qt player or imovie)

Question

Is anyone else having audio drift issues with video from the 3gs when imported into FCP? We find that a 30 minute clip plays just fine in Quicktime player with perfectly synced audio, but when brought into final cut pro the clip has several seconds of drift over thirty minutes. This is before it's ever placed into a timeline, and the issue persists even if we transcode to prores 4:4:4 or any other codec. Issue duplicated in FCP 6 and 7.
Also, the movies are often brought in upside-down, even though they are displayed perfectly by quicktime player.
If, however, I bring the same clip into imovie and export it, the resulting clip has perfectly synced audio which works fine in FCP.
Essentially, apple's free tools seem to have no problem with iphone-captured video, but Final Cut, which is the pro tool, seems to have issues. Unless I'm missing some obvious (or abstruse) configuration step which is causing the problem.
Any insight greatly appreciated; everyone in our shop is stumped.

Answer 1

Shane,
Thanks for your response, though I don't really see the need for the condescending tone while offering no useful information. I'm aware that H.264 is not an editing format -- If you had taken the time to read my post more carefully, you would note that I have already transcoded the footage ("and the issue persists even if we transcode to prores 4:4:4 or any other codec. Issue duplicated in FCP 6 and 7"), so your suggestion "Use Compressor to convert it to DV." really doesn't help much. We've done so and the problem persists. Hence the post.
Incidentally, I have transcoded with quicktime player, compressor, and FCP. All preserve the audio drift. Interestingly, Imovie deals with it well, kicking out a file with perfect sync. My instinct is that it's a metadata issue (i.e. FCP is misinterpreting the actual framerate of the video) but I'm looking for any similar experiences out there.
As for "professional" vs. non pro hardware and software, I certainly don't expect the iphone to shoot footage or offer features that are comparable to those of a pro camera. I do expect it to properly encode quicktime files for use with any bug-free quicktime-based tool, of which FCP is the flagship example. Should aperture not be required to handle photos from point and click digitals because they are not "professional?"
It's a somewhat ridiculous position to take that Apple's video tool would not support their only video-capable device. There are many consumer devices supported by FCP (you've heard of DV, yes?) and the 3Gs (and, I would assume, the coming video-capable ipod touch) are no exception.
In short, this is clearly a bug, and I'm trying to run it to the ground in order to use the 3Gs within a production environment for a project requiring many mobile devices uploading video from wifi connections around the world. If you have any useful information to offer, I'm all ears.