The document provides an overview of PayPal's mobile payments capabilities including:
1) PayPal allows consumers to pay and transfer money through mobile apps, mobile web, and SMS on any device. It also offers mobile checkout for merchants.
2) For developers, PayPal offers a Mobile Payments Library to simplify integrating payments into apps with features like one-tap checkout and payment approval notifications.
3) The library supports common mobile platforms and has APIs for payment setup, buttons, callbacks, and restoring unfinished payments when an app reopens.