My Bloglines Mobile contains the specific information that I want pushed to me to monitor, review and read. For example, I've set up news feeds to monitor particular news topics on clients that I do work for. I can use it to quickly monitor without wading through all the other news. Plus, the news isn't just from the NYT or BBC. On the otherhand, there are times that I just want to scan the news -- like looking through the local paper every morning. I not particulary interested in any specific item.
My analogy building off a quote of Dave Winer in a post by Kevin O'Keefe. Somedays I like to stand around on the bank all day long and watch all the boats go up and down the River -- but other times I only want to be alerted to specific ones (like the Delta Queen). I want to know when she is coming along so I can run down to the bank, watch her and hear her calliope.
UPDATE: A new feature added to Bloglines Mobile to make reading your favorite feeds easier. Bloglines has integrated Skweezer technology that optimizes web pages for use on mobile devices. I haven't had much of chance to try it out but I look forward to using the feature.