Welcome to WebmasterWorld Guest from 18.104.22.168
When I look for an RSS product these days I look for software or services that can be synced between my desktop and phone. I found it too tedious to maintain separate apps.
I'm not a Blackberry user, but I do know that the free Google Reader will work on your phone. If your desktop RSS software will sync with Google Reader that could be a good way to keep things coordinated.