Do you know what I would love? The ability to subscribe to RSS feeds that match only certain keywords or sets of keywords. I could just get the deals relating to the brands or device types I'm keeping a keen eye out for, and that would just be awesome. Yes, very cool, fantastic, incredible!
In addition to, or as an alternative to, I could also make good use of keyword email subscriptions. In fact I currently would prefer the emails since I get them on my phone...though it may be able to do RSS to if I get off my lazy kick.
Request for Keyword RSS Feeds 
