P2 Child theme issues

I attempted to create a P2 child theme and ran into several snags. Note: I was creating this child theme for a WPMU install.

Problem #1: the blog keeps thinking I’ve logged out. I have no idea if that’s something possibly caused by the child theme or not, but after narrowing things down (removing a custom functions.php), that seems to be the first change that causes things to go haywire.

Has anyone successfully created a P2 child theme that works in MU?

I thought Donncha had one — http://ocaoimh.ie/ — but it turns out it’s not actually P2 after all ( http://ocaoimh.ie/could-this-be-the-last-huge-wp-into-mu-code-merge/comment-page-1/#comment-671024 ).