Meanwhile in New York, a magistrate judge
rejected an attempt at using the All Writs Act to force Apple to unlock a phone. That case is a little different though as the owner of the phone already pleaded guilty, and the judge basically asked Apple for some basic arguments explaining why forcing an unlock is unnecessary given the plea. He is evidently rather critical of the government's efforts to overreach. Also, older iPhone that Apple could unlock easily if it wished.
Assuming that district and then appeals courts in New York and California side with the local magristrates, this pretty much creates the recipe for a Supreme Court case as there would then be conflicting precedents between two circuits over the applicability of the All Writs Act.