I have been considering purchasing .mobi domain names for my company and clients. Is there any reason for this? wouldn't it just be easier (cheaper) to just have a redirect on the website for mobile devices. so if someone goes to domain.com on a mobile phone it just redirects to domain.com/mobile or mobile.domain.com?

Anyone done this or have more info. I did a google search, but didn't find much to help with my question.

Thank you.