AppLink allows you to open some link to the most popular social networks directly in the official Android application instead of open the browser.
In some case it's possible that the Super User (aka root) permission is required.
Still in an initial release.
For suggestions or ideas or if you want to collaborate send an email monossido@lorenzobraghetto.com, sources available at http://github.com/monossido/AppLink
Twitter:
User link -> User profile
Facebook:
User link -> User profile
Post link -> User Profile
Message link -> List of messages (root needed)
Event -> Event (root needed)