Google Reader suggestion
That said; there are some utility RSS feeds that I subscribe to as whiz through quickly when I'm sat at a PC but have to pluck out of the mix and mark as read when I'm on mobile.
Wouldn't it be good if we could mark RSS feeds in Reader as 'mobile okay' or not. Feeds that I didn't want to see when I was using my iPhone or Blackberry to access Google Reader simply wouldn't appear when I was mobile.