I can sign into hotmail with my Nextel and and read and send email, so I know it's possible to use a Nextel to fill out a User/Password form. I can access Renderosity and read the front page, and read pretty much everything that doesn't involve logging in. I can get the "login" link and read where the form boxes are supposed to be for inputting my username and password, although I don't get the forms themselves and have found no way to log on. Am I possibly missing something or does it require some kind of fancy, totally geekified coding on 'osity's part to make it possible. Just wondering if it could be done?

I suppose you are talking about a Nextel phone ? Websites have to be designed and tested to work well on the display of cellphones. Some sites work well right away because they are just lucky. Maybe Hotmail made sure their site is supported by cellphones. I would be surprised if Renderosity fell in that category.