- Speaking of the post management page: a feature to customize how many posts per page are displayed (and even displaying all) would be very welcome. Additionally, the ability to filter by IP or even have a search feature would be teh awesum

I know u can do this kind of thing client-side using tablesorter and associated plugins, which works clientside using jQuery (pic related) - there's even a plugin for pagination and number of rows displayed. You can see some of these tablesorter features in action on @Party II in fact: https://cgi.heyuri.net/party2/user/49616e596568/monster_book.html