It is possible to use a browser like Atomic to get to the me.com pages, but it works poorly. None of the mobile browsers work well with me.com pages, and that is probably why Apple blocks them.
Instead you use the Mail, Contacts, Calendar, iDisk, and Gallery apps to get most of the same content you would get by visiting me.com. GoodReader can also be set up to access iDisk, and works better than Apple's iDisk app form most things.