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In that link we have one more global chat room. The interesting thing is that it seems to use google map. Could someone clarify what the technology is involved in creating an application like this?
I know it sounds a little subjective and with chances of being closed, but it’s a question anyway.
It’s probably google-maps-api combined with a proprietary technology that uses Websocket. Summing up not everything is "ready", most things are "created".
– Guilherme Nascimento