Unless it already exists and I just haven't gotten Google to find it... I wonder if the world is ready for a magazine (hard copy, dead tree) devoted to Linux on the desktop and aimed substantially, tho not exclusively, at novice/intermediate users, with a heavy emphasis on Windoze->Linux migration

A lot of people are fed up with Windoze but are afraid of the pain of migrating. It takes a lot of motivation to disturb a perfectly good Quicken for Windows, for example, and get started with GnuCash. A good magazine with tips for this kind of thing might find a market.

What's wrong with Linux Journal?? They usually cover a broad range of Linux related topics

All the magazines I sometimes read approach all the areas used in Linux. Well, most of the time I don't spend money on magazines to get my documentation, most you can just find online if you look hard enough.

http://www.linuxjournal.com
http://www.linuxfocus.org/English/
http://www.linuxgazette.com
http://www.linux-mag.com/

Some of the articles on the mags are newbie, some are more advanced. All are good for learning