Someone over at macrumors has discovered some interesting stuff buried in the new iTunes 7.5, that strongly hint to a couple of new features that might be coming soon to the iPhone. These features are: manual management of songs (instead of synching playlists), voice memos, and Disk mode.
Localized strings found in iTunes 7.5 below
Code:"4320.069" = "Are you sure you want to manually manage music on your iPhone? You will need to manually eject your iPhone before it can be disconnected safely."; .... "4320.073" = "Enabling the iPhone for disk use requires manually ejecting the iPhone before each disconnect, even when automatically syncing music."; .... "4320.075" = "The software required for communicating with the iPhone is not installed correctly. Please reinstall iTunes to install the iPhone’s software."; ... "4320.082" = "The iPhone “^1” contains new voice memos. Would you like to move these voice memos to your iTunes library?"; .... "4320.084" = " Would you like iTunes to choose a selection of songs to sync to this iPhone?";