We also own an important portfolio of patents related to the use of flash memory in portable devices and we are actively engaged in a strategy to monetize our patent portfolio. In June 2006 we engaged an intellectual property consultant to investigate, document and develop the portfolio and to liaison with outside legal counsel. In March 2007 we selected and engaged the international legal firm Duane Morris LLP to handle certain patent enforcement matters on a contingent fee basis. We, and our advisors, have performed certain due diligence on our patents and we believe we have strong intellectual property rights that can be licensed. During the first quarter of fiscal 2008 we were engaged in supporting the technical and legal development of the patent portfolio and expect patent enforcement actions to commence in the current fiscal year.
Our strategy is to market our eVU products and services to a growing base of U.S. and international companies in the airline, healthcare, military, and other travel and leisure industries which desire to market eVU to consumers at their facilities. We employ both direct sales to customers and sales through value added distributors (VARs) that provide marketing, logistic and/or content services to customers.
Our revenue is derived from the sale or lease of DVAP products and accessories to customers, warranty and technical support services and content fees and related services. We also are experienced and available to customize DVAP products for customers with special applications. We also expect that we can obtain revenue from our flash memory patent portfolio