[Tango-L] What's going on here?

[Mario]

A recent Milonga video from Germany
http://www.youtube.com/watch?v=eNWC76wPGOo
what's going on here?..is there a line of dance? 
Is this Tango music?
How do they reserve space to dance and what
goes on if the tempo increases? ..is there a 
'no kick' agreement?
Will this catch on do you think? 
Is this happening in your town?
Suggestions for what to call it?    thks
http://www.youtube.com/watch?v=eNWC76wPGOo