Appleinsider reports that photos and specifications for the iPhone have been posted on the website of wireless carrier China Unicom, a sign that Apple (AAPL) may finally be ready to enter the world’s largest cell phone market….According to Macworld UK, the site changes come one week after China Unicom representatives met stateside with Apple executives in what was described in media reports as a “breakthrough” session geared towards offering the iPhone 3G on the Chinese carrier’s network.