eBay is expanding its mobile reach in Europe through a deal with Telefonica which will equip the ecommerce giant with most smartphones and feature phones sold by the Telefonica via its O2 brand with eBay’s mobile app or a link to eBay’s mobile page pre-loaded.

The agreement includes most Android, Windows 7, Symbian and Bada devices sold by O2 in the UK over the next two years. Telefonica will actually work with device manufacturers to pre-install the application.

Telfonica O2 is one of the largest carriers in Europe. While the apps will only be available on O2 UK’s phones initially, the apps are expected to roll out to other Telefonica markets.