After a slow start, the free magazine telling you all about Raspberry Pi has improved a lot and has reached Issue 3. Given it is free, you don't have much to lose, even if you read it dreaming about the day your Raspberry Pi might arrive.
I was quite critical of the first issue of MagPi because basically it didn't have any RPi experience - the writers were in the same boat as the rest of us in that they were still waiting for a working RPi to arrive. Personally I found this a shock - surely the Raspberry Pi people realize that helping a magazine like MagPi is in their best interests? Overall they don't seem to be handling their publicity machinery particularly well.
The good news is that Issue 2 did contain some useful information, and the latest, Issue 3 is even better. There is even a draft of Issue 4 you can read - and even help to write. The magazine is looking for volunteers to write articles and do layout.
Overall the magazine has a retro feel - I almost expect them to start talking about the BBC Micro or the Commodore Pet at any moment.The Tandy-sponsored article, and the use of piano rules paper for program listings, doesn't help with the feeling of being in a time warp! But this isn't necessarily bad. The In Control articles, sponsored by Tandy, are quite a good introduction to interfacing and using Python.
It is also odd that, in this web-oriented age, the magazine is published as a PDF - but it make sense for educational use.