Film is unique and should always be around, especially at the professional level. My concern with digital is the storage mediums. How will current images stored on magnetic disks convert to new formats in the future (optical disks? holographic disks?). Film, especially black & white stands the test of time.
But there are some major changes at the professional level that signal dramatic change.
1) Hasselblad with the H2D-39 in the medium format category. This entry into the professional arena is an incredible shift.
http://www.hasselblad.co.uk/index.asp?p ... temId=3849
2) The Canon EOS 5D with its full-frame CMOS sensor. This puts dSLR on a par with 35mm.
http://www.dpreview.com/news/0508/05082 ... neos5d.asp
Most publications want digital so that they don't have to convert film to digital. I don't believe that Arizona Highways has gone digital, but until about a month or two ago, AZ Highways had not accepted 35mm, only medium and large format. Times change. Large & medium formats actually speak a different language, Can you say auto-Schleimpflug
: (that's the extent of my knowledge of these formats