Ebay’s PayPal unit has unveiled a service that will let users make payments by tapping their mobile devices together, joining rivals in the market for wireless transactions using near field communication technology.

The application will be available this summer for Samsung’s Nexus S phones, based on Google’s Android operating system. It will be offered more widely as near field communications is included in more handsets, said Laura Chambers, senior director of PayPal Mobile. – (Bloomberg)