Anyone who makes such a post and its their very first post on a message board such as this and pisses on the solid rep of its founder in Michael and I say.... BULL SHIT!! Sounds like someone works for Olympus or just has a hate on for Canon. As my gran'pappy said believe half of what you see and none of what you hear. Lots of luck on me ever dropping a nickel on Olympus junk theres other factors to consider such as brand rep, durability, consitent customer satisfaction etc etc I could go on but theres already too much to that comment for Olympus to stand up against so I'll stop.
Dear oh dear! What an unfriendly post. Usually, I'd just let this go, realising some people have stronger blinkers on than others but I've got to take you on with a few points here.
1) "Olympus junk .... etc. You clearly have forgotten all the recent issues that Canon have had with tilted viewfinders and focus issues on their flagship models. Plus, the build quality on the cheaper Olympus cameras/lenses is way better than the cheaper Canons (just go into a shop and handle one and you'll understand). Actually, your comments have blatant bias and we could go into this in great depth but, basically, you're either badly informed or mischievous. I use both Canon and Olympus systems so I do not consider I can be biased here.
2) The original post made sense to the poster and will to many others too. It is interesting how people who are fans of (usually) Canon and Nikon endlessly point out the disadvantages of the smaller sensors on the 4/3 system cameras compared to the APS based sensors. They are right that there are disadvantages but there are, equally, advantages. Now, someone has pointed out an example in which the shoe is on the other foot, in that the Olympus 420 has a much bigger sensor than the G10 with clear advantages and you have got all defensive over the smaller sensor. Very amusing.
3) Someone makes a reasonable first post and you go straight into attack mode. That's just plain unfriendly and not called for at all.
4) Everything in having camera choice is about finding the compromise that fits you best. We all have to give up something to get something else. In this case, it is about what you do not want to give up in a small camera in a modest price range, possibly the trickiest part of the market. All cameras mentioned in this thread are great, all can produce large, good quality prints (surely the important thing on a "landscape" forum?). All have their limitations and for some, the option posted in the start of this thread certainly overcomes some of the limitations of the tiny sensored G10, even if it then introduces other limitations. Hammering someone because of what you choose personally is futile and helps no one.