Tango, which was released last week, has now been updated to version 1.1. The only change to the video chat app is the addition of support for the Samsung Focus and Omnia 7, which previously had issues running it. A Samsung-branded iteration of Tango, also labeled v1.1 made a brief appearance in the Marketplace, but has since disappeared.
Samsung owners, rejoice, and get your chat on here.
Thanks for the tip, Dmitry!