iPhone users are used to wafting their devices at people -- especially those that don't have an iPhone and who desperately need converted. The coming Version 5 of the iPhone may be able to make retail payments by waving it at a pay station, as well. Or maybe not.
We love the 'heard it through the grapevine' sourcing, but that's the nature of rumor-reporting on Apple's product pipeline.
While keeping pace is not the norm for Apple, as it usually leads, it would seem like "duh, winning" that The 5 will have the invisible-pay option.
Keep on wafting, wafters.