I was testing the snapshot this morning and noticed a couple of minor issues.
First, if the location of the Cygwin files changes on a mirror, then
setup lists the mirror twice in the chooser and reports an error that
the selected mirror has been removed when you click next. For
example, the URL for mirrors.kernel.org has changed from
ftp://mirrors.kernel.org/sources.redhat.com/cygwin to
ftp://mirrors.kernel.org/sourceware/cygwin. The error message makes
sense when you track things down in /var/log/setup.log, but it is
confusing when you are just looking at what is displayed.