What I'd like to see is a port of the ToodleDo app from the iPhone world here. (http://www.toodledo.com/info/iphone.php)

ToodleDo is the most interesting web based todo list I've found, with a good web interface, browser integration, and a decent API. About a yeat ago I compared it and RememberTheMilk, and liked ToodleDo much better...