1) What is .mobi?
.MOBI is the top-level domain (ccTLD) short for mobile which is the mobile user experience, it is the top level domain dedicated to delivering the internet and services to the mobile phone.
2) Who can register for a .mobi domain name and what are the special registration requirements/restrictions for .mobi domain name?
There are no restrictions on who can register .mobi domain name, it can be register by any individual or business in any country.
However, any sites placed at a .mobi domain must meet mandatory standards for compatibility with mobile devices; registrant must ensure that any site using a .mobi domain name:
- Is built using compliant mobile code and Valid XHTML Mobile Profile;
- Responds to requests from mobile devices at it's primary URL (e.g: example.mobi);
- Do not use frames; Please refer to the .mobi Web Developer Guide for further guidelines.
3)What is Instant Mobilizer?
The Instant Mobilizer reformats the content from an existing site for the individual mobile browser accessing the dotmobi domain, and presents it in a way that is formatted for mobile consumption. It also automatically adds made-for-mobile functionality by converting all phone numbers to click-to-call links and all addresses into Google map links. These elements are automatically brought to the top of the page on the mobile site. For more details, please click
here 
