Mark/Space today announced that it is shipping The Missing Sync 4.0 for Palm OS. This release 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, Conduit Profiles that allow the user to easily turn on and off groups of conduits, Internet sharing for sending and receiving email or downloading AvantGo content, a streamlined mini-window view, improved install and backup capabilities and SyncMinder to remind the user when it’s time to sync. The Missing Sync 4.0 is priced at US$39.95.