One over the phone, a second that was supposed to be in person with itinerary, a 2 hour long festival with multiple devs was planned.... Then, some other party came in, told me some dude I had spoken with previously was gone and that they were the new contact, however that person they said I was in contact with was never my contact at all. In the end they cancelled the entire interview with barely 24 hour notice. To date, I have never seen a company show genuine excitement for an interview then basically insult the potential exployee with a lousy no explanation unprofessional cancellation like this before... ruined my impression of the company and their interest in expanding themselves into a stronger web presence.