In early February, Sony revealed that its Reader Store would be replaced with Kobo’s eBookStore, making the latter company the digital supplier for Sony’s ereader customers. Today the company has issued a small update on the matter, kicking off the process. Sony has announced that Reader, Xperia tablet, and smartphone users in the United Kingdom, Germany, and Austria will also be transitioned to Kobo’s ecosystem, something that is set to take place some time next month.