Drag and drop files!, nice.

http://3.bp.blogspot.com/_JE4qNpFW6Yk/S79rfcmEd7I/AAAAAAAAAjo/kdH1eFnHVYA/attachments2.png

http://gmailblog.blogspot.com/2010/04/drag-and-drop-attachments-onto-messages.html

Well, I'm not a fan of drag and drop, but since some of my coworkers can't understand paths and folders, this is a bless! :D

> using Google Chrome or Mozilla Firefox 3.6 drag and drop...

Chrome but neither WebKit nor Safari? Sodom AND Gomorrah.

If you are interested, here's how they did it (with HTML5): https://developer.mozilla.org/en/Using_files_from_web_applications

I am expecting to see this popping up all over the places very soon.