I'm using a trial of Cornerstone and like the product but don't like the fact they have no support. Meaning, they never answer their email. I need a source control program that can handle merging through Subversion. Specifically, merging from a branch back into trunk. Cornerstone doesn't and from what I've read Versions doesn't either: http://groups.google.com/group/versions/browse%5Fthread/thread/e499755588b0f59b
Can anyone recommend a source control for Mac that does support merging and also has support?
--EDIT--
Based on comments and given that Versions and Cornerstone have such similar feature sets, would the main reason to buy Versions be its support?