As of today release 1.0 is available.
In this release there are following changes:
The binary packages for RHEL4,5, Debian, FreeBSD, Windows as well as source code of the XtraBackup is available on https://www.percona.com/mysql/xtrabackup/1.0/. MacOS packages will come later.
Debian and RPM are available in Percona repository
The project lives on Launchpad : https://launchpad.net/percona-xtrabackup and you can report bug to Launchpad bug system:
https://launchpad.net/percona-xtrabackup/+filebug. The documentation is available on our Wiki.
For support, commercial and sponsorship inquiries contact Percona.