Instead of using a different url for handhelds, why not use a customized CSS together with the "handheld" media type?
See http://www.w3.org/TR/CSS2/media.html
Having two different urls for the same content, but for different target devices breaks the concept of linking. Google and other webpages linking to Wikipedia can not know (and should not know) what kind of device the users have.
I mean, without IE pre-installed on the box, how is Joe User going to go and download Firefox, Safari, Opera or Chrome?
The same way they download drivers for their netework cards?
There is no law of conservation of matter, only the law of conservetaion of mass/energy. And black holes obey that.
When they anhilate particles, their masses increase.
There is no way you can block illegal content without destroying freedom of speech. Even if the blacklist is public, there is no way of knowing what kind of content has been blocked.
The right way to treat illegal content is prosecution and/or take-down notices.
Unless the attacker deletes the recovery emails before you get to them, you'd notice somebody requesting a bunch of password resets. Ditto for signup requests.
That is easy, Just bomb the e-mail account with pop3 request.
With open-id, if you have RMS's Magic URL, you can pretty much go hog-wild as him without ever being noticed. Anything that takes an Open ID URL is something you can sign up for and probably do your bidding un-noticed.
Why not have the OpenID provider log authentication requests? This would even be better than the current situation where you have no way of knowing if somebody is using one of your existing accounts
Real Programmers don't eat quiche. They eat Twinkies and Szechwan food.
