We've already seen Visa team up with DeviceFidelity to deliver NFC payments via microSD card, and it looks like they now have some company from First Data and Tyfone, who have just announced a partnership of their own to help bring the technology to the cellphone-toting masses. At the heart of their system is Tyfone's SideTap card made by NXP Semiconductors (pictured after the break), which is not only able to function as an actual memory card in addition to a NFC payment device, but should cost about the same as a regular memory card of the same capacity as well. Using a microSD card instead of a phone with built-in NFC technology also cuts out the need for carriers or phone manufacturers to be inv
