Olympus is a genuine innovator in the dSLR market today (IMHO), just as they were in the film based SLRs when film still ruled. Self cleaning sensors, built in Image stabilization, Live preview and other features can all call olympus home. The olympus "bricks" (E-300 and 330) with their side swing mirrors were an amazing idea when they were introduced. They combined a certain "love it or leave it" ugliness that aided the cameras compact size in reducing it's obtrussiveness when used as a street camera. The small footprint of the camera, combined with the ability to use the live view feature suggest reasonable use as a street / reportage camera.
Today I use an Oly E-510 when such features are called for. The newest Oly's appear to do better at high isos then their 8MP ancestors, or at least that's the sense that I get so far. Admittedly the high iso issue remains a limiting feature of the Olympus line, as does the lack (for a little bit -not much - longer) of an E1 successor.
The other oly's that I still use - my OM-1s - they still have their place