This occured to me when I was playing with my MDA Compact Pocket PC Phone Edition, and tried RSS Sync to be able to read my RSS feeds when I’m offline (which is a bit contradictive, as the MDA Compact is a GPRS phone – but reading my stuff would be too expensive at current prices).
I fed it the OPML file with 130 feeds I exported from bloglines, and it took some time to scan and download all this.
Wouldn’t it be nice to be able to just scan a Bloglines RSS feed that corresponds to the view you get in Bloglines when you click on the top level, containing the unread articles of *all* your feeds?
Can’t be too hard to do, as it’s already in the web interface…
It would be the best way to check out stuff on a mobile.