Update (June 2): It's confirmed that Microsoft has bought 6Wunderkinder. No price is being disclosed, but 6Wunderkinder officials are saying their app will remain available cross-platform.
6Wunderkinder makes a task-management application, called Wunderlist. Wunderlist already is available for iPhones, iPads, Macs, Android, Windows, Kindle Fire and the Web. Sunrise Calendar -- now owned by Microsoft -- as of today integrates Wunderlist tasks into daily views.
I asked both Microsoft and 5 Point for comment. A Microsoft spokesperson said the company had no comment; 5 Point never got back to me.
Microsoft recently removed content it had on the teamflux.io, teamflux.org and teamflux.ninja sites. The "Walking Cat" on Twitter (@h0x0d) captured an image of what he said could be a new Teamspace collaboration app from Microsoft. (I've embedded his Teamspace image above.)
Microsoft officials declined to comment when I asked about what Teamspace is.