when i record a video with my phone, then sync it with iphoto, then resync with my phone the video does not appear on my phone . it is still under camera roll, but nowhere else.
AFAIK, its a one way trip from the iPhone to the computer. You cannot edit it, and then reload it back on the iPhone. Perhaps a future update to the OS will rectify that omission but for now it doesn't work
I suggest sending that request to apple via their feedback page.