Rating: 

Sample code not available yet unfortunately, so can't comment on that.

There are a lot of alternate and overlapping protocols/formats/tools covered, which can get confusing, would have liked to see a few more charts showing pros/cons and differences, and what fits with what with Silverlight 2. A bit more on security would have helped too - beyond integrated authentication, things to watch out for etc.

The chapters quickly covered what was needed and introduced new topics in a smooth flowing manner.

The chapter on debugging was an unexpected bonus that will save me many hours.

Thank you John and O'Reilly!