PayPal has released an update to its PayPal Mobile app for the iPhone adding a new Mobile Check Capture feature. With the new PayPal app, iPhone users in the U.S. can now deposit cheques into their PayPal account simply by taking a photograph of the check with the iPhone camera. Once the user has photographed the cheque their PayPal balance is updated immediately and they are required to hold onto the cheque for fifteen days after which they can simply…