I've used the Wixel in pairs just as though the two devices are connected via a serial cable. I am wondering if I can have several devices all on Wixels and all talking to each other. If one transmits a message can the other two or three all receive the same message. I don't think that's possible with serial devices, as each new device would be on a different port. Does this apply to the Wixel world?
If they must be in pairs, how many pairs can coexist in the same room?