I set up a test blog with 2.7b3 to make sure my plugins and themes work with it in preparation for uploading my live WordPress sites with 2.7 upon release. I like the new feature where I can search for plugins and install them, but I'm finding that I'm coming up empty sometimes. for example, I just tried searching for Simon Wheatley's "Exclude Pages from Navigation" plugin (which is listed in the WordPress plugin directory without the last two words), available at http://wordpress.org/extend/plugins/exclude-pages/ . Searching for "Exclude Pages" comes up with 110 pages of plugins, most of which don't contain the word "Exclude" anywhere in the title or description. This is a long standing problem with the WordPress plugin search.
However, if I search for "Simon Wheatly" or "Wheatley", I get zero hits. However, I see on http://wordpress.org/extend/plugins/profile/simonwheatley that he has nine plugins listed on WordPress Extend.