Accessibility of your application. What interfaces?

If you have a collaboration application that improves productivity and is going to be used day in and day out, here are some alternate interfaces that your users would like for your application. You would have known most of it for sure, but I thought of listing it here for the record as I have observed the usefulness of some of them in www.socialcast.com (an enterprise collaboration tool).

• Desktop App that shows information inline.
• Outlook Connector to view the info in dedicate folders
• iPhone App
• iPad App
• Android App
• Bookmarklets using Add Ons for Firefox, Chrome, Safari
• Browser native viewers by using Opera Extensions, Safari extensions, Firefox Add Ons, I.E. Add Ons, Chrome extensions
• Share (post) via email
• Show messages as
• Blackberry App
• Google gadget or GMail Gadget
• Facebook App to show message in facebook
• RSS Feed
• Vista Gadget