Hi!
This is a really great plugin - probably the best one-click backup tool I've found. I noticed one security thing though: by default, any backups you create can be directly downloaded by ANYONE if they happen to know the URL.
For example, you may do a backup of example.com, and the file could be:
http://example.com/administrator/backups/backup_2012-11-15_09-05_example.com-sql-nodrop.tar
Obviously, it's unlikely someone would guess this, but if they did - they can download your entire site!
I usually drop a quick .htaccess file into the /administrator/ folder to prevent direct access:
# Prevent direct browsing
RewriteEngine On
RewriteBase /
RewriteRule .* - [F]
Maybe you could include such a thing in the automated install process so that other people get this protection automatically?
Just an idea for a small improvement to a great plugin.
http://wordpress.org/extend/plugins/xcloner-backup-and-restore/
