Dungeons & Dragons Insider Subscriptions Now Required

As I mentioned a few days ago, Dungeons & Dragons Insider is starting its subscriptions. When they said it would start in a matter of days, they weren't kidding. They gave the one day notice yesterday, and after some strange random down time this morning, the subscription sign ups became available.
Some of the recent full issues of Dragon, as well as the barbarian playtest are remaining available, but much, in fact likely most, new content will be behind the subscription login. I hope everyone got the articles they wanted before the subscriptions started!
I did get mine and will do some occasional reviews of what is going up so people know what they're missing. I've committed to a year to give it a chance.






I've really liked the free stuff so far, I've printed out probably a dozen (on the work printer; they really need to make printer friendly articles) and I've used at least two when creating characters I'm currently playing.
It's high quality stuff so far, I think I'll be getting a subscription.
I don't use the D&D system, so I've never really even *known* much about the publication. From what I understand it's focused on the D&D system(s?), out of curiosity, am I wrong? Is it a good publication for any tabletop RPer or is it mostly aimed at the D&D crowd?
Insider focuses fairly exclusively on D&D, specifically the most current edition (4th).
Dragon did not always have such an exclusive focus, and used to include information on many different games. Given the changes I've seen in the online version, it is likely to remain exclusively focused on D&D, at least in the short term.
It might be worth taking a look at Kobold Quarterly, which, at least in theory, is open to a broader focus, though it is still fairly d20 (3.5 D&D) focused.