E-M5 rubber eyecup http://www.getolympus.com/us/en/catalogsearch/result/?q=ep-10 and other bits found from here, may have to select other bodies than E-M5 to find things like hot-shoe caps Hint.... decent lens hood for 12-50mm lens is a Nikon HN-2 metal hood designed for their 28mm lens.
A 1.5 hour video of an Olympus rep showing E-P3 menus and also wireless flash operation, it is a B&H organised seminar http://www.youtube.com/watch?v=TxFFkZot24I and the general info is useful for all Olympus M4/3. Contains some errors and uncertainties, use with caution.
A
sensibly written page explaining crop factor and what you may expect
when using a different sensor size than you normally are used to http://dpanswers.com/content/tech_crop.php