There are a variety of indications that sales of dedicated ereading devices as well as tablets (or at least non-Apple tablets) were weak over the holiday period — perhaps because those who want them already have them, and the devices are all solid enough that they do not require continuous replacement cycles. Apple announced in a press release that “the first week of January set a new record for billings from the App Store with customers around the world spending nearly half a billion dollars on apps and in-app purchases, and New Year’s Day 2015 marked the single biggest day […]