Mark/Space today announced the release of The Missing Sync 4.0 for Palm OS. This release, which is expected to ship in August, supersedes PalmSource’s HotSync Manager for Mac OS X, the software that allows data to be exchanged between a Palm OS handheld and a Mac. A few of the features of version 4.0 include Wi-Fi (802.11) network sync, easy Bluetooth synchronization, desktop mounting of memory cards, iPhoto and iTunes integration, Internet sharing for sending and receiving email or downloading AvantGo content, a streamlined mini-window view, improved install and backup capabilities and SyncMinder, a user-configurable alarm that reminds the user when it’s time to sync. The Missing Sync 4.0 is priced at US$39.95 ($19.95 for upgrades).