Been reading thru this thread, the one at the FTX forums and other forums and what gets me the most is how defensive some can get towards DX10 when users that want to get the most out of it get told in direct terms, "it's a preview, get over it!". maybe so, but I have been flying more and more with DX10 and all the little difference really enhance my experience. I notice better performance, I just love what the extra shaders do for deep water, the white caps are sweet, and having cockpit shadows really enhances the experience since I fly helis mostly.
yeah I get the occasional flickering at airports which usually can be fixed, the issue that custom ground polys have and a few FS9 aircraft have some textures issues, but it's give and take like anything else in life.
Here's hoping that one day we can find a fix for these things and even discover new things that DX10 can make shine and thus further our enjoyment of the sim.