Yahoo Tries to Improve Your Inbox
Jamie found a story about Yahoo's plans to improve your inbox by incorporating more information into the sorting. Simple thread order or chronological order ignores tons of information that might be available on social networking websites. That way your friends will be more prominently displayed. Automating this could beat the hell out of a hundred lines of procmail recipes.
BTW - you can write to Yahoo's support about things like date formats. Ask them how to configure it to the standard where you live. They replied to me. If enough people do it, one hopes they'll pay attention and fix it as it will be cheaper than continuing to handle people's emails. Ok, maybe I'm deluded ;)
http://help.yahoo.com/l/ca/yahoo/mail/yahoomail/contactus/
On my version (the "new" look), you just click on the ubiquitous paperclip icon, whereupon those emails with attachments float to the top. No searching necessary.