I agree, this is unusual for Anandtech. It seems you could summarise the 12 page review as 'meh'. Maybe they didn't have enough time with it to get into any more detailed analysis.

Also, I get the impression that Microsoft has been set a lower bar -- almost encouraged for just having a go in this space rather than comparing it to existing products. E.g. how does the Type Cover compare to the range of 3rd party products available for the iPad for < $129? How much better is the Touch Cover to onscreen when taking into account predictive text & auto correct? Not much to go on in this review. Maybe MS haven't given a lot of time for people to spend with the product.