There is also DVD tutorial's for Pens series including PL1.I have the Magic Lantern Guide for the E-P1, too. Bought it for my E-P2, but it still helps now... I'll be interested to see what the "For Dummies" guide is like and expect it will be helpful for many. Thanks tpitch!
As an aside the Magic Lantern Guides have a nice plus of being just about the same size as the manual, so they're easy to carry around if you feel the need, but they haven't gotten around to making another version, yet.