AnandTech published a HTPC builders guide that focuses on AMD's Llano processor, you can read it over here.
All the three major vendors (Intel, AMD and NVIDIA) pay quite a bit of attention to the HTPC market in their products. It is universally agreed that AMD presents some of the most economical HTPC building blocks targeted towards budget system builders. It has been almost a year since the Llano lineup was launched. By integrating a CPU and GPU into the same die (and bringing along AMD's expertise in the GPU arena for HTPCs), these APUs (Accelerated Processing Units) offer a lot to the budget HTPC builders. In this guide, we will not be covering any benchmarks or doing any comparative study across products from other companies. Therefore, we will also assume that you are aware of the technical merits of the Llano APU lineup.