This is a major release that has been under development for a long time. It should be released in the next month or so, check it out! There should be even more awesome features by the time it releases, but I am already impressed :)
This is completely yoinked from Brian Harry's recent post... please go to his post to see MUCH more detail than what I am covering.
There are 3 major new components to the October Power Tools release and the usual incremental improvements.