Well, at least expect to be imperfectly delighted if you completely dump your existing workflow for a completely new 1.0 product at release.
Which is not the same thing as expecting the end of the world.
And some others don't seem to have noticed that Apple has policies/procedures in place for enterprise customers. They should be announced shortly for FCPX, just as they already have been for Lion and iOS apps.
According to those who have had some advance info from Apple, expect solutions for most/all of these issues in the near future. Except for the shiny part. It stays.
Delivery through App Store, by the way, allows for shorter upgrade/update cycles; don't expect the old 18-24 month wait between significant updates.
Nope. As per the last public preview exposition of FCPX, there will be no Express version.
iMovie for amateurs, FCPX for serious work.
Heck, FCE 4 was $200 (and you can get it from Amazon now for $180). It's gone from the Apple Store already.
I don't know what you're doing, but I typically get 9+ hours on a charge on this 13" MBA.
That doesn't, obviously, include running video/flash/CPU-intensive tasks. Online web browsing, reading, light text work.