As useful and convenient as iPhones and iTunes tend to be, there may be some serious issues left to resolve.
Per reader Martin Joyce, a number of users have been experiencing syncing issues between their iPod and iPhone handsets running iPhone OS 3.x and iTunes 9.x. The issue, which is being discussed at length over at the Apple Discussion Boards, cites that the most common issue is that of there being no content on the iPhone or iPod handset after a sync. The discussion has yet to conclude with Apple publicly acknowledging the issue in any way, shape or form.
If anyone has seen this on their end or has heard of a possible forthcoming fix from Apple, please let us know.