Verra cool!

You can avoid the username+password/cookie requirement by using '&for_user=vroom', or '&for_userid=979' to simplify it (thus requiring the user to only supply their username or home node ID number). The only difference is that the "votesleft" field will come back as -1, which shouldn't be a problem.

The part I like about using the home node ID number is you no longer have to be concerned about users with stupid characters in their names.

--Chris