I noticed that a neat AJAXy search has been implimented, but I wanted to bring this up...

If someone types in a query on sidebar you get this URL with an error page stating the requested special page doesn't exist:
It should return something like this:

Nice thing is:
If you go back one page in your browser cache, you get the search results page

also, if you enter the search term and DON'T hit the search button (just wait) - it will show the results

Oh - seems I am too lazy to wait