1. K. Ridley, Global Mobile Phone Use To Hit Record 3.25 Billion, Reuters, June 27, 2007. © Reuters 2007. Available online at http://www.reuters.com/article/email/idUSL2712199720070627.
2. ABI Research, GPS-enabled Location-Based Services (LBS) Subscribers Will Total 315 Million in Five Years, New York, September 27, 2006. © 2007 ABI Research. http://www.abiresearch.com/abiprdisplay.jsp?pressid=731.
3. ABI Research, Personal Locator Services to Reach More than 20 Million North American Consumers by 2011, New York, November 28th, 2006. © 2007 ABI Research. http://www.abiresearch.com/abiprdisplay.jsp?pressid=766.
4. Sun Microsystems, Inc., The Java ME Platform – the Most Ubiquitous Application Platform for Mobile Devices, http://java.sun.com/javame/, © 1994-2007 Sun Microsystems, Inc.
5. Sun Microsystems, Inc., Java Technology: The Power of the Java Brand, http://java.com/brand. © 2007 Sun Microsystems, Inc.