There's no need to track iPhone sales, when Apple releases the numbers for how many they sold every quarter.
http://investor.apple.com/results.cfm
From this past holiday quarter:
http://www.apple.com/pr/library/2014/01/27Apple-Reports-First-Quarter-Results.html
"The Company sold 51 million iPhones, an all-time quarterly record, compared to 47.8 million in the year-ago quarter. Apple also sold 26 million iPads during the quarter, also an all-time quarterly record, compared to 22.9 million in the year-ago quarter. "
starcraft: "I and every PS3 fanboy alive are waiting for Versus more than FFXIII.
Me since the games were revealed, the fanboys since E3."
Skeeuk: "playstation 3 is the ultimate in gaming acceleration"