I actually gave up on waiting for an exact match for my SLR lenses...I don't really take photos the same way anyhow. Right now, if I need to use an SLR I have an Olympus E420 that will take my prime Olympus OM lenses and exactly double their focal length, which is at least understandable. My Zuiko f3.5 50mm Macro 1:1 is, on the digital camera, a 100mm equivalent Macro 1:1, which is simply astonishing, and my f4 200mm Zuiko is now an f4 400mm equivalent lens.
I do miss not having a wider angle lens, though...my old 2.8 24mm is now a 48mm. I may have to eventually buy a wider digital Olympus lens.