How do I switch over from the Borders library to the Kobo library?
Borders app for Android users may no longer migrate their Borders library over into their Kobo library for reading in Kobo for Android.
Source: Per Kobo.com
Kobo migration service no longer available
As of September 27th, 2011, the Borders to Kobo migration service is no longer available due to the recent auction of the Borders website and intellectual property.
If you have not previously migrated, you can still register for Kobo and enjoy our vast selection of 2.4 million eBooks and freedom to read anywhere with our ereaders and free ereading apps.
Please note: any ebooks which remain in your Borders library are no longer available to merge into a Kobo managed library.
Visit Kobo support for more information regarding Kobo.