June 2012
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Day June 18, 2012

Taking requests for The Critical Path

What topics would you like to have me discuss on The Critical Path podcast? Put forward your questions as comments below. If you see a question already asked, vote for it by marking it up.

A more precise measure of Apple's device installed base (and device longevity)

Apple announced that the total number of iTunes account (with credit cards attached) has reached 400 million. This was touted as being the largest collection of credit card accounts for any retailer and I have no reason to doubt it. However, looking beyond the bragging rights, there are more interesting patterns to observe about this asset.

What I plotted was the cumulative number of iPods sold (green), the cumulative number of iPhones and iPads (yellow), the combined devices total (red) and the reported number of iTunes accounts (blue).