Hi there!
Like some other users I noticed a missing search feature for the new and awesome bbPress 2.0+ plugin. So I just released a small and leightweight plugin for that:
bbPress Search Widget
Info & download at WP.org:
http://wordpress.org/extend/plugins/bbpress-search-widget/
-> it’s limited to the custom post types of bbPress: forums, topics, replies
-> there’s a drop-down to select one of these (a must) – so it also helps fine tune the search for the visitor…
-> it’s fully localized so you might translate the few strings into your language – I will attach any translations which are submitted to me!
I hope it’s useful for you.
Have fun
Any feedback is very welcomed of course!
-Thanx, Dave from Germany