After shuttering its Reader Store in the US and Canada earlier this year, Sony has confirmed that it will be discontinuing the service in four other countries: UK, Germany, Austria and Australia. However, customers using the Sony Reader and select Xperia devices will be able to access Kobo's e-book store once the Sony Reader Store shuts down on June 16.
Sony provided tools for its existing consumer base to migrate to Kobo's platform when the storefront was shut down in the US and Canada, so it is likely that the manufacturer will do the same for its forthcoming closure. After June, Sony has mentioned that it will launch an update that will allow customers to directly connect to the Kobo Store for future purchases. Kobo has also provided answers to several questions regarding the migration process here.