I've just made a quick video of me messing around ArtyOnline and some test worlds. It is beta, so it is rough around the edges.
http://youtu.be/H54ODfkQrfk
Here I'm using two Alice instances on one computer only because I was too lazy to record seperately from another computer. It works fine on multiple computers, so don't worry about that.
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I have mostly moved on from Alice, but may still respond to messages if important [¬º-°]¬