* NuBacon [3]: A port of Bacon to the Nu programming language [4], but rewritten in such a way that it properly works in a runloop based environment. This means that running the specs does not halt the main thread and specs can schedule blocks with assertions on the runloop for later execution. For now it's only in time (seconds), but this could be extended to use KVO to trigger running the block of assertions etc. I'm still working on the iOS runner, but there is a bug with Nu on iOS that I have to work on first. However, if you do want to try this out please let me know.
* MacBacon [5]: A fork of Bacon, for MacRuby, with the exact same runloop-aware code I implemented in NuBacon backported to MacRuby. Nota that I haven't used this code in a project yet, but needed it for a project I'm starting on today. (If that's not test-first I don't know what is.)
Once I have done proper releases I'll write a few tutorials.
[1] http://behaviour-driven.org [2] https://github.com/chneukirchen/bacon [3] https://github.com/alloy/NuBacon [4] http://programming.nu [5] https://github.com/alloy/MacBacon