I have been testing and working with WordPress 3.1 beta 1. In this version the administration is ajaxified. Some of the exciting new features are Post Formats, Admin bar( like in WordPress.com ) and Multi-taxnomony queries.
My little contribution to this wonderfull platform.
Fixing the issue with admin menu save state:- At r16813 which fixed menu dropdown sliding issue but it has caused another issue. When the dropdowns are expanded or collapsed, the menus are always collapse when the page is refreshed or re-visited. See ticket #15767 for more information, fixed at r16784
I am glad I’ve got this opportunity to fix the above mentioned issues. I will continue to test WordPress 3.1 beta 1 and contribute patches whenever I get the opportunity.