Hubbl, the app discovery service built by former TechCrunch Disrupt finalists, has introduced an interesting new feature today for users of its iPhone version: Passbook integration. To get started, you simply visit a link (hubbl.io/passbook) from mobile Safari, in order to add a pass to Apple’s Passbook which will then send you a new app deal every day. The Passbook feature will also be added to a… → Read More