I have a Cpanel server, so all my domains are accessible both with and without "www". There is no .mobi necesary for that. Domains for mobiles are simple W3 validated html 4.01.
My email is redirected to my vodafone account, so I read it all over the world.
Also, if domainers think that shorter is better, then two-character TLD's are worth much more than three and four character extensions.
There is a paradigm shift taking place: LL.mobi and LL.info may be just as handy to remember and to type in as LL.ms and LLLL.ms. Since there are more dictionary words under LLLL than under LL, mobi will not last long. IMHO the current rush for short CC domains is allready taking place.
I hope for all .mobi investors that I'm wrong. As for me, I stepped in the .ms business. Yes: W2.ms.