Pretty much, yes.

From http://en.wikipedia.org/wiki/Arduino#Legal_dispute

  At the end of 2008, Gianluca Martino's company, Smart Projects,
  registered the Arduino trademark in Italy and kept this a secret from the
  other co-founders for about two years. This was revealed when the
  Arduino company tried to register the trademark in other areas of the
  world (they originally registered only in the US), and discovered that it
  was already registered in Italy. Negotiations with Gianluca and his
  company to bring the trademark under control of the original Arduino
  company were not successful, and in 2014 Smart Projects began refusing to
  pay royalties. Smart Projects appointed a new CEO, Mr. Musto, who
  renamed the company to Arduino SRL and created a website named
  arduino.org, copying the graphics and layout of the original Arduino.cc.
  This resulted in a rift in the Arduino development team, and although all
  Arduino boards are still available to consumers, and the designs are
  open source, the implications of this are uncertain.