Visa Europe will launch an NFC-based mobile wallet service in August or September of next year, according to a senior executive of the credit card giant. Commercial director Steve Perry (pictured) made the comments during Visa Europe’s European security summit in Frankfurt. The comments were reported by the publication Pocket Lint. Perry said users will be able to include rival cards as well as Visa’s in its wallet. “If the digital wallet isn’t as sexy as my current wallet then it won’t take off,” he said.