The guys at NewsGator released version 2.1.8 of the NewsGator Go! for Blackberry product, which is an RSS reader for your BlackBerry. Since I'm a giant feed fan, I though I'd point out two things about this product that are especially important for the enterprise:
synchronization: If you read a post in NewsGator Go!, it's automatically marked as read in any other NewsGator client you use. I'm subscribed to over 200 feeds and while I'm not on the go that often, the ability to read a feed on your mobile device and then not have to see it again is a really big thing.
access to internal feeds: if the company you work for uses any sort of Web 2.0ish applications that tend to produce RSS feeds like bunnies make babies then you'll appreciate the combination of NewsGator Go!, NewsGator Enterprise Server and your BlackBerry because you'll be able to subscribe feeds that live inside your firewall, something that most feed reading applications won't be able to do. Big.