To my friends and fellow LU players:
I'm not sure if you know but playing LU again is possible thanks to the LUNI project and Jonny's Server.
See this: http://lu.jonnyvps.de/?page=forums&topic=5 (requires an account, which will be the same account to be used for playing the game)
You can fly with the /fly (and to disable it, /fly off) macro in the chat. Also use /testmap 1000, 1100, 1200, etc. to 2000 to teleport between worlds. And " /gmadditem itemid #ofitems " to get whatever you want, see http://luniserver.com/info/objects/ .
I played it with SamMercury and IbuggabuggaDalien. All the NPCs are missing but if you ever wanted to walk (or fly) through the worlds again... or explore the worlds where you've never been before... :O