Ultradata Australia, which supplies the core computer systems to many of Australia's credit unions, has unveiled a mobile payment application that allows people to make payments armed only with the recipient's mobile phone number or email address.The company has also announced that four clients - Police Credit of Victoria, Teachers Mutual Bank, Hume Building Society and Queensland Police Credit Union - have already committed to offer the new app to their customers. The system works on iPhones, Android devices and Windows phones."Pay Anyone Mobile Banking" can be customised by each institution using the service.  The recipient receives a notification that there is a payment pending, uses a code that is provided by the payer to log on to a website, and then inputs the relevant bank account details to complete the payment loop.Trevor McNamara, IT manager of QPCU, said the credit union was currently upgrading to Ultradata's Ultracs 4 core banking system and, as part of that overhaul, would begin offering the new mobile payment service to customers. Although the organisation already offers Ultradata's mobile banking application, this is the first time it will be able to offer payments directly from a mobile platform, according to Mr McNamara.The mobile payment market is growing rapidly. Sydney-based Sandstone, for example, released its BankFastApp in February.  It allows a payment to be initiated using just a mobile phone number, with recipients registering their details on the financial institution's website in order to receive the first and any subsequent payments.Although the system was launched in February, Sandstone has yet to sign a customer for the app. It has, however, signed up six users for its browser-based mobile banking system called BankFast Mobile, including Bank of Queensland, Newcastle Permanent Building Society, IMB and ME Bank.St George, meanwhile, announced it was offering a Pay to Mobile facility back in Jun that, again, only requires the payer to have the mobile phone number of the recipient to make a payment.Institutions are also overhauling their payments platforms with an eye to mobility. Earlier this year, Commonwealth Bank unveiled its Pi payments platform and an Eftpos tablet that will be available in 2013. CBA will also sell a phone case which turns a smartphone into a payments terminal. And PayPal has released a dongle that turns a smartphone into an Eftpos terminal. Then, last week, ANZ announced FastPay, a mobile system that allows people to manually input credit and debit card details to a smartphone or tablet before 6.30pm and have the funds clear that day.The latest mobile payments innovation comes from NAB. It has announced that it is partnering with point of sales specialist VeriFone.NAB will adopt VeriFone's development platform and encourage its merchant partners and developers to use the platform to develop applications to turn Apple, Android and BlackBerry devices into payments terminals. A PAYware sleeve will be one of the first releases from the NAB-VeriFone partnership and will turn iPhones and iPads into payments terminals.