The document summarizes the growth of contactless payment technology beyond payment cards and into alternate form factors like key fobs and mobile phones. It discusses how over 10 million contactless payment cards were issued in the US in 2005, and how issuers now want to extend the technology to more convenient forms that can be personalized. Key fobs and mobile phones are highlighted as top potential alternatives, though challenges in manufacturing, distribution, and consumer acceptance must still be addressed. The document concludes that successful alternative payment forms will provide similar security assurances as cards while enhancing convenience through customization.