Analysts: 1.5 Million iPhone 4s Sold on Day One, Many as Upgrades

Did Apple just sell 1.5 million iPhone 4s in the first day of actual sales? You bet they (probably) did. According to several pieces of analysis some three quarters were upgrades too--people have really caught the iPhone bug.

The 1.5 million figure comes from Yair Reiner of Oppenheimer, who notes that this kind of guessing has "become something of a national sport." His figures seem solid, though, and the math really isn't that complex. We know that Apple revealed some 600,000 iPhones had...