.mobi is a sponsored TLD which provides the Internet to mobile phones. .mobi domains are made to be viewed on mobile phone screens. .mobi registry is sponsored by Nokia, Samsung, T-Mobile, VISA, Vodafone, Afilias, Ericsson, Microsoft, Google and other international mobile identities.
.mobi was approved by ICANN on July 11, 2005 and then made available for registration from the 26th of Sept 2006.
As mobile phones replace every day computers it may be worthwhile for you to look into the .mobi extensions. Before purchasing a .mobi extension you need to deem whether marketing via the Internet will benefit your business.