The gateway is in very much early beta at the moment, but if any of you are interested in using it then leave a comment and I'll drop you the address.
And I lied about the cookie working. It works until you disconnect from the WAP gateway. Either that, or WAP browsers can't tell the difference between session and persistent cookies.
(Edit: character limits suck)
(Edit: T9 typos also suck)
(Edit: cookies apparently suck too)