Jim, I posted in this thread How Do You Like Your E-PL1? my basic reasons and I stand by them still, which is a good thing for me. Give it a read through, if you haven't already.
If I had started off with a Panasonic camera, I'd probably have been very happy, too. I went for Olympus because my experience with film was with an OM-1, and I've always had a fondness for Olympus cameras. However, I'm certainly far from a digital camera aficionado, that's for sure. If I weren't used to the E-P2, and didn't already have the EVF (electronic view finder)...I might have waited to see what these new Panasonic cameras were going to be like...but that's not how it worked out for me. Things just had a way of falling into place.
I am not, a professional photographer. I have a BFA in Photography from Ohio University from 1978 and specialized in color printing. Think art student with camera. I've never made a living using my camera, though I have been paid for my work in the past - long past. I'm in it for fun, enjoyment, for a creative outlet, for taking more photos of my family, friends, life, etc. That' it.
And any questions you have - either add them to an existing camera thread or start a new one in the appropriate camera forum or use the This and That forum, if you want to discuss the plusses and minuses of both together. By adding them in one of those venues, you'll get many more eyes seeing them and answering.
Jim, if you can, the best thing is to go somewhere to handle and look at the cameras in question, after you've read about them.
i own the ep1 and gf1 and love having both , micro fourthirds is the future and your instincts are sound i like the cameras that have the smallest form factor personally
they seem to take advantage better of the fact that these cameras need not look like small slrs ,but thats just me
whatever you choose , i am sure you will love the benefits this wonderful new format offers