Now gnus can grab mails from HoTMaiL. I've checked it into CVS (0.99).

Usage:
(push '(webmail :wmtype hotmail :user "your_account" 
        :password "top_security") mail-sources)

Known problem: HoTMaiL only accepts one line cookie, while w3
(4.0pre.46) breaks cookie into several lines and is not customizable.
The attached patch works around this problem.

-- 
Shenghuo