Geek.com: Rumor has it Amazon may soon become a player in near-field-communications for mobile payments.
Device Index mobile payments
InformationWeek: Will Apple and Google bring about mainstream use of mobile payments?
Forthcoming Isis wireless payment service -- which aims to make the mobile wallet a reality -- counts three of the leading U.S. carriers as inaugural partners.
The recent hire of near-field communications guru Benjamin Vigier as Apple's product manager for mobile commerce has sparked widespread speculation that the iPhone will soon be used as a digital wallet, too.