I was just browsing Amazon and noticed that there are new revised editions of the SAS Survival Guide and SAS Survival Handbook, by John 'lofy' Wiseman:

http://www.amazon.com/SAS-Survival-Guide-Collins-Gem/dp/0061992860/ref=pd_bxgy_b_img_a


I have the previous versions of both the handbook(full size), and the guide(the mini version), and I'm a big fan of both. I love the compact guide, which is very small but packed with tons of useful and interesting info, and I bring it with me on every backpacking trip.

I'm wondering how different the new revised editions are, and if its worth replacing my current guide with the new one. Has anyone seen or purchased the new versions yet?