Credit card processing is a necessity when doing business nowadays, but it is not always cheap and easy. Card readers usually require electricity and a network connection, and merchant accounts can have expensive monthly fees. And for those who need to process credit cards outside their company's main location (like a customer repair or consignment situation, or a mobile sales truck), there were few workable solutions — until now. A number of companies — including PayPal, Intuit, and Square — are creating innovative ways for individuals and businesses to avoid cash and checks and process credit cards using just their cellphones.
The New York Times reports on this trend in an article here.
You can read more about the Square service still in beta in this PC World article.
Here are links to some of the companies mentioned in these articles: