The file...
ftp://elsie.nci.nih.gov/pub/tzdata2010e.tar.gz
...is now available.

Below find proposed changes to time zone package files; the executive summary:

antarctica Changes to Australian stations
asia Change Syria DST start from last Friday in March
to first Friday in April in 2010 and forward
australasia Correct 2010 Samoa DST start date
tz-art.htm Add "Inherit the Wind" quote (thanks to Mark Brader)
zone.tab Add Antarctica/Macquarie
zic.8 Add material on case, abbreviations, and use of English