Apple's just picked up four more wireless operators to deliver the iPhone. Singapore Telecommunications (SingTel) will ship the iPhone in Singapore, Bhariti Airtel in India, Optus in Australia and Globe in the Philippines later this year, reports Reuters.

Today's news follows last week's announcement that Vodafone would be extending the iPhone's reach as well, by ten countries. Vodafone markets include Australia and India, and, like Telecom Italia Mobile, which will also carry the iPhone, Italy.

Apparently, Apple's decided the one-carrier-per-market model it's been following since launching the iPhone in the U.S. through AT&T isn't the best strategy for all markets. Perhaps the competition will help consumers where the iPhone becomes available from multiple sources get a better deal.