This is the Popcorn Hour A-100, a media streamer that supports HD 1080p output. It is powered by Sigma Designs SMP8635 chipset, 256MB RAM and 32MB Flash.
The device supports all kind of media formats, including H.264, ISO, XviD..etc. It supports also some web services, such as YouTube, Flicktr, Shoutcast, and even BitTorrent.
It is priced at $179 USD.