Obopay, TextPayMe, Way Systems, Mobilelime
Link: SiliconBeat: Obopay: Will let you pay for almost anything with your cell phone. Really..
We’re aware of several other competitors: Textpayme, of Redmond, WA, which uses text messaging to send payments to other phones; Way Systems, of Woburn, Mass., founded about four years ago, and backed by Bessemer Venture Partners and VantagePoint Venture Partners; Mobilelime, of Watertown Mass., which raised $4 million last year.
I linked to this Silicon Beat article again because I wanted to keep a record of the above players that the guys referenced. Super article.