Facebook, Microsoft gripes with Apple's App Store on EU's antitrust radar

Facebook and Microsoft's grievances over how their gaming apps appear on Apple's App Store may feed into an EU investigation into the iPhone maker's business as EU antitrust regulators said such concerns are on their radar.The European Commission in June opened four probes into Apple, three of which are into its App Store and its restrictive rules, including requirements that app developers use its own in-app purchasing system.