AVR-Chat

"It looks interesting - How do you like it? The manual doesn't have
an install guide I noticed, is it easy to install and configure?"

If you are referring to SmartSVN, then, yes, I like it. (Else I would use something else :) )
To install on a Mac, download the application package, uncompress (unzip) it into a temporary folder, then simply drag the application to 'Applications' (or where ever else you'd like to put it.

It's a very powerful svn client tool and with power, unfortunately, comes a little complexity.  When a new version is released, simply follow the exact same procedure 'after' dragging the existing release to the trash. All your settings are held in the Library, so nothing ever gets lost.  It's obviously a help if you are comfortable with command line svn tools as you'll need to know the difference between the various repository types (local/svn/svn+ssh/http etc...) and how to access them, in order to set the configuration options correctly.

It has quite a close relationship with the finder, and installs itself as an extension, so you can 'update'/'open' and 'commit' straight from the finder context menu, along with the usual GUI front end it supplies.

I had very little trouble integrating it with both EclipseIDE and Rowley's CrossWorks for AVR.  AVRStudio4 on windows didn't want to play, so I have to drop out of the IDE and use the tool separately, though thats not a show stopper).

It's what I would call a 'Pro' tool, and as such takes a little learning. I use the Professional Edition, so can't really say whats available in the free release.

--greg