Below are four free applications for the Touchpad.
LCARS-Clock : 73%
A nice Star-Trek styled alarm clock, that can be used in Exhibition mode (only usable in landscape)
Classic FM : 70%
A good app to listen to the internet radio station (with some access to other stations as well)
Rev3 : 70%
An easy way to access Rev3 content from the Touchpad.
F1 Calendar 2011 HD : 65%
Not some much an application, but links to Wikipedia, useful for seeing the F1 calendar and you can add the dates to your calendar.