I guess I'm at bit biased since we made this app, but I really like the Team Portal iPhone app. Give it a try yourself together with your free SharePoint 2010 account.

Some of the current features:

  • View and open your collaboration sites and sub sites
  • Manage your favorite sites
  • Open documents from your sites, share documents by link or attachment
  • Flip horizontal for full screen view of any content
  • Activity Dashboard
  • Task lists (your tasks, overdue, all tasks)
  • People list showing online and offline site members
  • Call or e-mail your site members
  • Choice to remember/forget your username and password
  • Choose your default opening menu in this app