What convenience store customers do want is convenience, and they often interpret that as speed. Speed happens to be one of the arguments in favor of contactless devices, but McCarthy said he didnt see the speed argument playing out. The big time savings sold to him was that customers wouldnt have to spend the time handing a clerk his or her credit and waiting for the clerk to later hand it back. But Wawawhich has its stores in Pennsylvania, New Jersey, Maryland, Delaware and Virginiahad already installed magstripe readers for the customers to use directly."Our customers, they swipe their card anyway. We have the device in front of the register. [The customer] still has to take it out, so it wasnt a really big time savings." McCarthy said that he concluded the checkout acceleration would be too small to be worthwhile.But some in the banking community are discussing allowing small credit transactionsthose that are less than $25to complete without a signature, McCarthy said. Now that time savings would be much more significant, he said. Will consumers cell phones and PDAs be the next checkout device? To find out, click here. McCarthy has already tried shortening the payment duration with a frame relay connection to every store, which "delivers a 2- to 3-second response time on credit, which is awesome," he said.He is also trying to modernize the chains cash management system, but thats proving difficult. "The biggest thing were facing right now is that we have a lot of legacy applications" including many that are about 18 years old, he said. As those systems are replaced, Wawa will be able to improve its cash management. With the current state of banking and credit/debit cards, McCarthy is also seriously exploring creating a Wawa-branded credit card as a way of taking controlto a certain extentits out-of-control fees. Not only does he believe Wawa will be able to negotiate lower fees, but the chain would earn money from the cards they issue as the banks want cards that will be used for many kinds of purchases. At 7-Eleven, the CIO feels very positively about RFID and what it can do for inventory. To read his thoughts on inventory and deployment, click here. McCarthy said that RFID wireless payment systemssimilar to Mobils Speedpassis of interest, but that he would love to be able to use RFID to help with inventory. "There certainly is a lot of applicability," he said. But todays tag pricesMcCarthy said hes still seeing prices from 25 cents each to as much as 50 centsare still far too high to consider for such a low-margin retailer. He said he needs to see the tags selling for "probably a penny or so.""Youre making a couple of cents on an item. How can you afford to do that" unless the price gets to about one penny? he said. McCarthy also said he needs to factor in the additional storage and related data management costs. "Think of the data requirements. Every SKU could have multiple records." Retail Center Editor Evan Schuman can be reached at Evan_Schuman@ziffdavis.com. Check out eWEEK.coms for the latest news, views and analysis on technologys impact on retail.