It seems that Visa is not too keen on the "chip 'n' signature" security that iZettle uses, even though the Swedish company says it has a lower fraud rate than for chip and pin transactions.
While competing solutions require either two sensors or multiple chips to support pen and multi-touch, N-trig is the first company to offer both on a single chip and a single sensor, providing device manufacturers with a compact, low-power solution and paving the way for N-trig to enter the handheld market.