I think they were talking about Bash on Linux on Windows, using technology from that cancelled Android-on-Windows project.
look here: https://channel9.msdn.com/Events/Build/2016/P488
and if thats 404, search this url in google, its cached.
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this site uses some kind of standarized method to test and compare battery runtime
well, AFAICS Islanwood or WinObjC is not in very good shape either, the code on GitHub is moving very slowly and still very hacky and incomplete. that said, there MIGHT be some news around WinObjC at Connect() next event, we'll see.
in related news, Facebook just did exactly what WinObjC supposed to do with their newly released Facebook Beta app in Windows Store, which is actually an iOS app ported to WinStore with a Facebook internal toolkit called OSMeta, Facebook acquired OSMeta in 2013, its technology can port iOS apps to other platforms, similiar goal as InceptionMobile, which is acquired by MS and became the team behind WinObjC. OSMeta is interesting stuff. looks like quite mature and complete, and works.
it looks like he was in the hospital and had a surgery =:O
fortunately he is back now, and kicking :D
watch the video here:
see slides page 6-8 http://gotocon.com/dl/goto-cph-2015/slides/ErikMeijer_KeynoteOneHackerWay.pdf