Can unity places be written in C++?

There exists a library called libunity which is a native wrapper over unity dbus api. Since c++ can link to native libraries, so you can write your apps in C++.

Also check kamstrup's ubuntu develop week session on libunity. I can't search for it since I am on phone with pretty slow network speed.

UPDATE: Here is the link. Thanks to ris https://wiki.ubuntu.com/MeetingLogs/devweek1103/RockingOutwithlibunity

I am not sure, there is this post (link below), but it says Python: http://www.omgubuntu.co.uk/2011/03/making-your-own-unity-place/