Battle Royale - Epic Games v. Apple and Google

Epic Games is suing Apple and Google over Fortnite in-app purchases. What's going on, what are Epic's claims, and who might this affect?  TIMESTAMPS (00:05) Epic Games is suing Apple (00:32) Fortnite's business model and tech giants' slice of the pie (01:52) Epic Games' allegations against Apple and Google (03:14) A likely unsuccessful application for a preliminary injunction? (04:28) What about Europe?