Derman Enterprises ( has announced its first
public beta of Sync’Em, a new sync hub for Macs.

It lets you synchronize: your Exchange contacts with your Address
Book; your Exchange contacts across multiple Exchange accounts; your
Exchange calendar events with your iCal events; and your Exchange
events across multiple Exchange accounts. You can do all this without
installing software on your Exchange server

Sync’Em Beta 1 requires Mac OS X 10.5.x. Beta licenses are free.