Hmmm... I was looking at upgrading to Fences Pro.  I need to do a bit more investigation, because impulse running all the time is a no-go for me on the purchase.  Steam, I can live with, especially since it's just for games, and the app itself is pretty non-intrusive (and you can run games directly without steam running first).  But impulse just sucks for an always on application.  It's too bloated.  And for the most part I like Stardock and its applications.