There has been a significant reduction of processor use in 3.13. You can also now resize the main window, a feature that I have been desperately wanting for awhile now.
A bit of good news for Mac OSX users. After quite a long wait, there is now a Mac version of KeyholeTV!
Linux users, there is a new version for you too. Head over to the Linux download directory to get your update.
Thanks Likm for the heads up as always!