Bicon http://desktopi18n.wordpress.com/2011/01/31/bicon
I integrated Bicon into Fedora 13 or later last week. Bicon is a bidirectional consol and you can show RTL strings (likes Arabic) on terminal.
Bicon is available with yum.
# yum install bicon
The usage is easy. You can invoke ‘bicon’ command on gnome-terminal and choose a RTL keyboard layout. The screen shot shows an Arabic string is arranged with RTL using bicon Bicon image http://desktopi18n.files.wordpress.com/2011/01/bicon2.png