RT @http://n2.nabble.com/Not-getting-hildon-theme-for-Armel-terget-and-unable-to-build-for-Armel-terget-td2953653.html

please use the x86 target to test your applications and the armel target only for cross compiling. starting the window from the armel target will fail. For further information please have a look at the release notes 1.

And the mmap issue is handled here now 2 I guess ;)