For no intelligent reason other than curiosity, after Yahoo's announcement that they'll start offering free e-mail on the ymail.com domain, I've tried out all the other *mail.com domains to see what's there.
It doesn't get any better as the alphabet progresses: ads, ads, and more ads. kmail.com doesn't work. Neither do nmail.com, omail.com and rmail.com. I've got to admit, I've held high hopes for xmail.com and zmail.com, but they shattered like waves on the sharp rocks of generic ads.
Once again, this reminds me of the sad reality of domaining: so many good web domains are bought by someone who set an enormous price tag on them and is now enjoying a couple of hundred dollars a month from people who stumbled onto the site by mistake. It may be free and open; it may even be fair, this Internet thing we've invented, but it sure as hell ain't perfect.