For those in the US curious about their upgrade eligibility, use this link: https://buyiphone.apple.com/WebObjects/IPACustomer.woa/wa/IPAToolAction/springboard

For those in the US curious about their upgrade eligibility, use this link: https://buyiphone.apple.com/WebObjects/IPACustomer.woa/wa/IPAToolAction/springboard https://buyiphone.apple.com/WebObjects/IPACustomer.woa/wa/IP... I'm finding that I'm eligible for the fully subsidized price after only about 17 months from getting my iPhone 4.