Logitech has released a cool iPhone app that lets you control your PC via a virtual keyboard and track pad via Wi-Fi. Perfect for the HTPC or computer connected to your TV. My favorite part is the fact that it shows you what you are typing so you don't have to constantly look up at the computer/TV screen. Install this app on your iPhone and the Touch Mouse Server software on your PC, and poof you have a great free wifi keyboard/mouse.