These slides compare the experience someone using SharePoint 2010 with their PC and their smartphone.
You can see the full layout, features, for anyone starting to use SP2010 with their PC.
Using your smartphone the features are more restricted although layout and images are still shown.
This shows MyProfile with images, full set of tabs and information about me to help people know if I can help someone.
For smartphone users the information about me is more limited (strange how my birthday is shown but not organisation, whereabouts or colleagues and my connection with each of them) although an image of me will help people hoping to meet me for the first time.
For PC users this shows content I am sharing with other people that is published in SP2010.
For smartphone users the same documents are available as with PC users.