Finding this site was like solving the DaVinci code for mobile internet!
While you can get some great information on the free portion of the web site, with the MIA membership you get access to all of the nitty-gritty details as well as awesome in-depth summaries and training. THIS is the kind of information one needs when researching the technologies available and the products that use those technologies before hitting the road.
Any time there's a relevant change or new story specific to mobile internet, MIA is on top of it! They sometimes get the scoop well before it's public!