Will we see a new generation of iPhone this year? A clue from the latest iPhone 2.2.1 firmware might have revealed a new iPhone. Macrumors has spotted a new device ID, called “iPhone 2,1″ in a block of XML list. How will this lead to a new iPhone device? The first generation of iPhone is known as iPhone 1,1 while the iPhone 3G is identified as iPhone 1,2. Other than the little clue from iPhone 2.2.1 firmware, at least one developer has also noticed few iPhone 2,1 users from a ads server report, which could be a prototype testing by the new iPhone tester.