Ray, I had my old S9 openbox set up like that and personally I didn't like it. I'd rather have it scroll up and down the channel list but that's just this old guy. 97West was fun going left and right and up and down to find a channel.
Have received comments in about even amounts between single column ( being able to read the full name) and the multiple column (abbreviated name display). We are keeping it as a single column until we can provide a user menu option between the two selections.