SyncMate for Mac OS
With new version of SyncMate you can easily sync your Mac with Windows Mobile, other Macs, Nokia S40 phones, Google account and more.
SyncMate allows you to sync your contacts and calendars with many devices simultaneously and even with your Google account (in 2 ways, unlike iSync). BTW, since version 2.0 you can backup your important data online.
SyncMate Expert Edition grants you even more syncing options
