Rejoice of course! Would be really nice to still have the option of not wrapping of course, but distributing some apps via Gems is a nice feature too.
No existing functionality was harmed in the making of this feature :).
Multiple apps are not going anywhere, especially because they are a very nice way of seperating things without the overhead of having a gem somewhere else that is hard to keep track of.
Actually, the initial commit didn't even touch any existing methods.
https://github.com/padrino/padrino-framework/pull/1007