From DS Data Systems UK:
KonaKart is a java-based enterprise eCommerce or shopping cart application that provides everything that retailers need to sell their products over the Internet. It includes an extensive set of online shopping cart features to satisfy the needs of both online shoppers and retailers alike. KonaKart is a trusted, partly open source, premium quality, enterprise-strength eCommerce solution for organizations demanding better performance, flexibility, scalability and connectivity backed up by a responsive professional services and support team. All functionality is available through easy to use POJO, RMI, JSON and SOAP Web Service APIs for the ultimate in connectivity to both front end systems (CMS and Portals) and back end ERP and Order Management Systems.