The initial registration period is open only to businesses and organizations with trademarked names that want to secure the related .tel address for a fee of about $400 a year.
A "land rush" period, in which anyone can buy domain names for around $150 a year, begins Feb. 3. After March 24, domain names will be available for around $20 a year.
The new domain, which stores and encrypts contact information directly into the Domain Name System, has the potential to become a phone book for the Internet.
A .tel domain name links to the contact information of businesses, organizations and individuals. Information can include telephone numbers; links to Web sites, including a Facebook or MySpace page; e-mail addresses; instant messaging names, and, if you wish, identities for virtual games like Xbox Live or Second Life.
Code:
http://bits.blogs.nytimes.com/2008/12/02/tel-them-where-to-find-you/
essentially, what they are pushing .tel to be used for is like a live contact. instead of adding someone's email, you would add someone.tel, when someone then updates their contact details via DNS, they will be updated in everyone's address book where someone.tel is listed.