Well, it's not every day that GitHub releases a product that competes directly with my young startup. Thankfully, it's still very DIY, which is the opposite of what my customer development has told me is important. So a sigh of relief from me.
At my talk at the Italian RubyDay on continuous integration I received huge critiques for endorsing a Java solution for ruby CI. My point was that Jenkins was far more complete ( at the time of the presentation) of any full ruby stack CI product. This news is a fine Christmas present. This tells me that people clever than me share some of my views