The zhcon package was added to FC6 and FC7 extra recently. But there is a issue of it that we may need to notice.
Because it need to access /dev/fb0 and so on, it need the setuid permission, so normal users can use it too. This bring the security risk. But for users' convenience, I didn't remove this setuid permission. It is still better don't install zhcon by default. Let's user install it manually.
Maybe we can use ACL to controll this?