Having been consolidating my iTunes library, music folder etc to another drive, so I redownloaded my apps rather than copy them over. Strangely, it seems that even if I download them fresh from iTunes, in the Mobile Application folder it looks like iTunes downloads downloads multiple versions (e.g for the >100 Mb files like Asleep, Ambiance, Band etc). What gives? My old app folder did have multiple versisons, but i just guessed it kept the old ones and references the most recent ones... So does iTunes just sync the most recent version to the iPhone, but keep all versions you've encontered/there have been?