Ars says it was iPhone 4 running iOS 4.3 - http://arstechnica.com/gadgets/news/2011/03/nexus-s-beats-iphone-in-real-world-web-tests-says-firm.ars http://arstech

Ars says it was iPhone 4 running iOS 4.3 - http://arstechnica.com/gadgets/news/2011/03/nexus-s-beats-iphone-in-real-world-web-tests-says-firm.ars http://arstechnica.com/gadgets/news/2011/03/nexus-s-beats-ip...