We live in exciting times. Broadcom has released the Crystal HD BCM70012 (official link), a Mini PCIe 1080p decoder. Since the Aleutia Fanless T1 PC has a mini PCI express card slot (which we often use for an 802.11n Intel adapter) you can upgrade that low power PC so that it can play back 1080p content without having to resort to the more expensive Nvidia Ion boards we use in the Aleutia H1 Fanless HTPC.
Even better, the BCM70012 is supported by Adobe Flash 10.1 (still in beta), just like the Ion chipset. Flash 10.1 is less processor intensive than 10.0 because it uses the GPU as well. That means that for £25 extra, an Aleutia Fanless T1 can play back YouTube in HD (now 1080p) something that my MacBook cannot do, as well as BBC’s iPlayer (720p).
Anandtech has a great article, highlighting the full linux support enjoyed by the Broadcom BCM70012 and XBMC’s (Xbox Media Centre) ability to utilize it, as well as Boxee.