XForm specs for ODK Collect 1.1.7?

Hi guys,

Thanks for getting the Beta of the latest ODK collect out. It's much
appreciated. I know you just got it out, but I was wondering if the
specs for laying out the XForm with the new functionality was
available somewhere? Things like immediate select, grouping questions,
etc. Just point me in the right direction, source code even, and I'll
be happy to figure out the rest.

thanks again,
dave mitenko