Great! Does not re-invent the wheel -- it uses xterm for the actual terminal (rendered "--into" the yeahconsole window), so if you spent a lot of time configuring xterm to your taste, this will feel just like home. Took only a few seconds to install, and it delivers exactly what it promises.
This will be in my .xsession for years to come!
I've been looking for something like this for quite a while. GraphThing 0.1 is a great start! I am looking forward to the next release.