According to Business Week

On Tuesday, introduced Amazon TextBuyIt, a service that lets users purchase items via mobile text messages. The same day, Citibank began a public testing of a service that lets cell phone users transfer money among accounts.

I am all for using technology to speed up my shopping experience. I cringe when I have to go into a brick and mortar store, for I know I will be waiting in line, or they may be out of what I am looking for.
Would you feel comfortable send payments via your cell phone?