The flight tracker that powered @ElonJet has taken a left turn

A major independent flight tracking platform, which has made enemies of the Saudi royal family and Elon Musk, has been sold to a subsidiary of a private equity firm. And its users are furious.

ADS-B Exchange has made headlines in recent months for, as AFP put it, irking “billionaires and baddies.” But in a Wednesday morning press release, aviation intelligence firm Jetnet announced it had acquired the scrappy open source operation for an undisclosed sum.