Bukkit

I'd like to see a update on this so you'd be able to add more than 1 command to a single sign or block.
Like this
/commandsigns 1 /command1,/command2
or this maybe
/commandsigns 1 /command1, 2 /command2

I assume you've figured this out by now, but you can...

/cmds 1 \you are running multiple commands            [now press ENTER]
/cmds 2 /mail send Omanoctoa Hello Omanoctoa!     [now press ENTER]
/commandsigns 3 /give <player> goldblock 100         [now press ENTER and hit the block]

Type each of these (or whatever you want) one after the other but DO NOT hit the block, until you have finished entering the last command and hit ENTER the THIRD TIME. This will assign all 3 commands to that block. you can also do this by using:

/cmds insert line_number command

Which allows you to add commands to an existing sign, without editing it (though likewise, you could just use /cmds edit)