Websites are adapting to fit the needs of mobile cell phone users as more and more mobile phones come equipped with internet / web access.
Website owners are formatting their sites to work on smaller screens. Many of these sites have dotmobi extensions. Savvy website owners using services such as Dotmobi to create sites for mobile customers will jump ahead of their competition.
As a cell phone user myself I rarely use the web function on my mobile phone because visiting websites and downloading all those kb’s of data is extremely expensive.
Now, if I know of sites that have been specifically formulated for mobile users I would take a chance and use one of those sites if I really needed to get some information from the web.