From The Register:
Eight per cent of UK adults have paid money for an electronic book since Christmas, with the average reader getting through 5.75 titles. …
Those who got an e-reader for Christmas top the figures, buying (on average) 5.9 books each, while downloaders who had to make do with an iPad or smartphone only bought 5.3 books – though that’s still a lot of reading to get though in the 35 days following Christmas.
Those with a dedicated e-reader unsurprisingly downloaded the most, with 84 per cent of them sourcing additional reading material (we assume the remaining 16 per cent are still getting through the pre-loaded content, or can’t work out how to get the covers open), but almost 60 per cent of those who received any kind of e-book-compatible device had also downloaded something by way of reading material.