I was excited to see a new article for 4th Edition D&D. Part of the reason for my purchase is to support the creation of further articles.I love skill challenges for some of the same reasons as the writers. The concept revolutionized my approach to non-combat situations in my games.
This is a decent summary of the rules, and of some of the common approaches to them. It also contains some advice I don't recall seeing elsewhere. I don't agree with all of it, but it seems clear that it works for the writers and could work for others.
The cover art is beautiful, but I believe it's just a public domain image. There are a few inside illustrations that are pretty good and have a clear 4th Edition influence; they're not just generic fantasy pictures.
There are also two example skill challenges.The actual text is about 3 and a half of the 10 pages.I hope these writers produce more and post them to DriveThruRPG. I'll be on the lookout.