Qusay H. Mahmoud (Ph.D.) is widely published in Java user journals. He is the author of the Distributed Programming with Java book, (Manning Publications, 1999), and Learning Wireless Java (O'Reilly, 2002). Previously, he has worked as a software designer for Newbridge Networks; a sr. software engineer for the school of computer science at Carleton University; and a lecturer in the academia in Canada and overseas.