Sony has just introduced the SMP-N100 network media player in the UK. It will allow you to access Bravia Internet video, using Wi-Fi and DLNA support. This makes it similar to Apple TV, allowing you to stream content via Wi-Fi throughout your home from the Sony SMP-N100 directly.
You can access YouTube, the BBC iPlayer and Demand Five, and films. Content Noise Reduction is built in to improve the quality of streamed video. It will hit the UK market next month for about £120.