Shivansh Shrivastava developed these mockups which he presented at the WikiConference India and shared with me at the Mumbai hackathon:
https://svn.wikimedia.org/viewvc/mediawiki/trunk/mockups/ajax-mockups/
* English Wikipedia main page mockup with newsticker and gallery * Sliding login/account creation panel (based on existing GPL'd jQuery plugin) * Floating table of contents tab
Some interesting ideas there, I'm sure he'd welcome any comments on-list or off-list :-)