> > It will be interesting to see if APS DSLRs ever move up to 8 or more > megapixels. I don't know that the increase in pixel count on the same > size sensor would give enough improvement in image quality to be worth > the additional storage space (larger buffer in camera, more and bigger > CF cards, greater use of hard drive and CD-ROM space). I don't think it > would be for me.
But those are exactly the areas which do get cheaper over time, rapidly. Two years ago even a 1GB CF card or Microdrive was very expensive, and the 4GB drives hadn't been released. A 250GB hard drive (and a DVD writer) would have cost more than my entire desktop system. In another year or so CF card size will have increased by another factor of 4 (at constant price), hard drives will be bigger, and in-camera buffers will be larger. The in-camera processor will be faster, too. That 8 (or, more likely, 10) MP camera will buffer more images, and process them faster, than the *ist-D does today.
