Before Habbo was Mobiles Disco (Habbo is the idea from this). The wiki shows the old re-created public rooms that we used to have derived from the game (screenshots below of the original Mobiles): http://www.habboxwiki.com/Old_Skool_Habbo so I'm guessing they bought them back as a Throwback.
https://xuble.files.wordpress.com/20...ilesdisco5.png
http://kalasaitti.net/images/guides/5f18e329004fa.png
http://kalasaitti.net/images/mobiles5.png