I work closely with both the Authors and I believe they will be getting out a version for 2.0 when they can-
We were all laughing that this gets Slashdotted after 2.0 even though the book has been out for a little while - I even have my own Signed copy :P
But as I work very closely with Moodle I can assure you plenty of people will still be running 1.9 for awhile longer, I still run into Moodle 1.6 sites from time to time
Also there is currently no way to import an class into Moodle 2.0 that has been backed up in a previous version - that will come in 2.1
[off topic]
Moodle 2.0 is such a jump from the previous versions of Moodle - it has taken them ~3 years to get it out... People should let bugs get worked out of the early builds before they start jumping on this - at the very least a 2.01 or 2.02
some stats from the Moodle Git repository for the amount of
changes that have happened to Moodle 2.0 in the last little while.:
Since Nov. 10 the following has happeend to the 2.0 code:
430 files changed, 9158 insertions(+), 8117 deletions(-)
This means that within the 430 files that have changed there have been
9158 lines of code with additions made and 8117 lines of code with
deletions made.
This is a LARGE amount of code changed in a very short period of time...
