I just found that GMail is finally going to allow us to use pre-defined operators in order to search for stuff like, Unread Mail, etc. I’ve been asking for this type of functionality for a long time – glad it’s being released. Check out the JPG screenshot of the new Gmail Searches.
Update: Ok – now I feel like a real “Dwakhead”! I installed a plugin for FireFox earlier, from LifeHacker, which gave me this cool feature, and I didn’t realise it!