"How the fack?" was my first reaction..Because this is so awesome! Revives old memories, yet also seems really fun (especially when you try to bomb others)!!

A few questions:

1) What backend technology do they use for real-time and concurrency? Node.js?? Scala??

2) How does one update the players' real time positions/actions??

If someone could shed some light on these questions, it would be so freakin awesome!!