Amulet devices are doing just that. They are a BizSpark startup based in Dublin, Ireland. They are a device and software company. The software does voice control of Windows Media Center which can be the hub of your home entertainment.
Their remote is a universal remote that has a very clever microphone that is activated by a gyroscope. When you tip up the remote, it activates and allows you to control your media center by voice. It means that the remote won’t accidently pick up your voice and start changing channels on you right before the winning goal or the bad guy gets the bad guy. It also means that it’s you can use it in a crowded and noisy room as the mic is right next to you.
They are, unfortunately not available for sale in Europe but they are available all over North America.