To illustrate Oly's DSLR lineup progression I will use Henry's Photography Show for the timeline. Many people will already know that Henry's is a large Canadian camera store chain. They have photography shows spring and fall each year.
In spring 2006 Oly had the entry level E-500, the E-330 which was an innovative but niche product, and the top of line E-1 that was almost 3 years old.
Fall 2006 they had the same lineup, no new bodies. Disappointing
Fall 2007 they had the E-410, E-510, E-330. The E-3 and SWD lenses were days away from being officially released. Oly's booth at this show was at least twice as big as Pentax's.
The spring 2008 show is coming in a month and they will have the E-420, E-510 (or possibly E-520), E-3, 3 SWD lenses, 70-300, 25mm pancake, 2.0 teleconverter and 2 updated wireless flashes.
In 2 years they have improved their camera and lens lineup substantially.
I live near downtown Toronto, so my experience is not typical, but I can walk to 2 camera retailers, 2 big box stores and an electronics discounter that sell Oly DSLRs. Plus several other retailers that sell Oly P&S cameras. There are at least 5 other stores in Canada that I can buy Oly DSLRs through their internet stores. Sure they are not as broadly distributed as C and N, but I don't see a problem with distribution or availability.
I regularly see billboards, magazine ads Rangefinder magazine, Canadian Geograpphic) and web ads (DPReview, Weathernetwork) advertising Oly DSLRs. That did not happen 2 years ago.
They even have a try before you buy program called Livedrive.
If you want a brand that has huge shelf space in every store, and you see hanging around evey pro's and soccer mom's neck, Oly is not the right brand for you. C and N have huge market share, so Oly sells on innovation and differentiation.
Poke at Oly's efforts all you want, but it is easy to see the progress they have made recently.
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BruceMcK
http://www.pbase.com/brucemck