Samsung has released a new version of Kies for Mac that supports Galaxy Tab 10.1. The new version ver.22.214.171.12462_33 can be downloaded off Galaxy Tab 10.1’s support page or from the direct download link below.
Kies for Mac is in beta stages and supports few devices like Galaxy S II, Galaxy Tab (7-inch). The Mac beta version also does not come with firmware-related features, which means you’ll not be able to upgrade your device’s firmware. At least for now.