RBC Capital has noted that its checks suggest that Apple may try to produce 8 million iPhones in 2007, which implies 12-14 million unit sales by the end of calendar year 2008, well ahead of Apple’s stated 18-month goal of 10 million units. The firm also claims that Apple’s plans for 07 may include boosting iPhone storage capacity, and an iPod line refresh that they believe includes an updated iPod nano, a new iPod and a new video iPod.…