You can clone with
HTTPS or Subversion.
I'm not sure if RIM has any control over this as it isn't a RIM sample, but the NothinButNet sample fails to compile on Beta 2 of the NDK.
If you change "AbstractPane *root = qml->createRootNode();" to "Page *root = qml->createRootNode();" in app.cpp, lines 73 and 156, the project will compile but it does not work when it runs, it doesn't work. The wheel doesn't rotate, the graph doesn't show up, and tapping on a team match doesn't bring up any details.
It also doesn't work on beta 3.