PocketMac has launched two new versions of its GoBetween sync software, for Microsoft's Entourage 2004 and 2008. GoBetween is used to improve on the support of Apple's iSync software, which does not always properly support all software and devices. The newest versions of GoBetween ensure that contact, calendar and task information is properly transferred from Entourage to iCal and Address Book, and from there to iSync and whatever devices may be connected.

Some supported devices that are not otherwise Entourage-compatible include the iPhone and all iPods, Palm products, and a variety of phones by Nokia, Motorola and Sony Ericsson. When synching, GoBetween lets users selectively include or omit categories, which are preserved throughout the sync process. Both versions of the Entourage app cost $25; use with Entourage 2008 requires Mac OS X 10.4 or later.