Touchpad Pro lets you wirelessly control your PC or Mac through your iPhone or iPod Touch. You can use it to advance slides in a presentation, control your media center, check e-mail — whatever a regular touchpad and keyboard can do. It’s got various features that you really have to see to believe. With ScreenView, you can now see what’s happening on your screen and control your computer even if you’re miles away.
So far the official word from there website.

Let me show you some video’s of the app.

That looks cool doesn’t it? The app’s price is 15$.

But that’s not all. The same guys also have another app called Touchpad media server.
Touchpad Media Server lets you control any media player using Touchpad Pro with more features than a regular remote. It’s great for watching movies or playing music on a media center.
Touchpad Media Server also works on the mobile Safari web browser, so you don’t have to jailbreak your iPhone or iPod Touch to use it! There’s no installation required on your mobile device whatsoever. You can use it to control your media player, and present PowerPoint as well as other applications.

I will probably write a more extensive review for these apps later but for now i’m just informing about it’s existance.

You can find more information about both apps here.