All this information seems deliberately vague. Rate of switchers could mean multiple things. Highest rate of switchers is especially meaningless, blackberry might have had the highest rate of switchers from iPhone ever this quarter if it's 0.1% and it used to be 0.05%. Plan to repurchase by 'brand' - is that company or OS. If by company, the 86% does indeed seem dangerously low if accurate. It seems strange that such a successful company is using such vague metrics to describe their performance.
You can look at the ChangeWave report if you want, it doesn't seek to be vague. I don't understand why it matters if it is about switching phone manufacturer company or OS. Do you think there are people that plan to change the manufacturer of their phone, but stick with iOS? It is manufacturer, of course.
I don't see how the rate of switchers is meaningless--an uptick in percentage of iPhones being bought by former Android users is useful as a trend.
They refer to a lot of metrics besides just these, you know. Its an hour-long financial call that is devoted to detailing different business metrics. ASP, channel inventory, growth in China, estimated gross margin for next quarter, growth in visits to retail stores, and foreign exchange implications being some of the more important ones.