It looks like the best solution for a keyboard and mouse to control the AppleTV. (and many more)
The website said ;
Can I use Remote Buddy to control my Apple® TV? (FAQ015E0199)
No - sadly. Apple® TV is a closed platform that can only be extended and modified through software updates by Apple®. If you are looking for a customizable and extendable media center system, we’re recommending to buy a Mac® Mini and Remote Buddy. Such a system will not only allow you to play back DVDs, but also allow you to add a third-party TV solution.
Even modified Apple® TV systems lack the required interfaces, applications and abilities - like f.ex. the ability to install your own kernel extensions - as that using Remote Buddy on that device would currently make sense.
Please couldt you make this possible?