Apple's on-again, off-again deal with China Unicom to officially bring the iPhone to China may still be up in the air, but it looks like it could now also be facing some trademark issues that could potentially further hold up its release. Apparently, China's Hanwang Technology owns the trademark for "i-phone" in the country, which could force Apple to make a deal with 'em before it enters the market (sound familiar?). Interestingly, Appl