Acer unveiled the Acer AspireRevo earlier this month. The NVIDIA ION based Acer AspireRevo is no bigger than a hardcover book and is advertised as being able to run Windows Vista Home Premium and deliver 1080p HD video and 7.1 audio.
Engadget got their hands on an Acer AspireRevo and published a detailed review. Their verdict is rather mixed as for some apps low priced Acer AspireRevo is performing great and for others not.

Quote from the review: “The Revo is a really odd mix, a device that can excel at “enthusiast” applications like video transcoding and gaming, but struggles with a basic web app or YouTube. It seems Joe consumer — the supposed target of such a device — will gravitate to the Revo for its low price, but might be a bit disappointed by the seeming inconsistency in performance, or confused by the need to buy an external disc drive. High-end users will know exactly how to put the Revo to good use, but for a couple more hundies they could get a lot more CPU power in perhaps a Dell Studio Hybrid or Mac mini. ”
Read the full Acer Aspire Revo review on Engadget.