This article is about JRuby's support for Android. I have nothing but respect for Charlie Nutter and the JRuby team but they are extremely short-staffed and spread quite thin with the ambitious agenda they have set. For that reason I would not count on a lot of support for any Android features they are able to roll out.
I think the hope is that the broader Android scripting and JRuby communities will step up to help. There is already a project[0] that allows bridged access to a lot of Android APIs via Python, and Lua. Getting JRuby to this level wouldn't be a huge effort, and would definitely give people a bit of motivation to move forward
That said, I think in the short term it's a pipe-dream. Getting the code going is the easier part, building the development infrastructure around it is a lot harder.
I'd love to write Android apps in Ruby, but I'm not holding my breath.