Book excerpt: 'The Hitchhiker's Guide to Going Wireless" quickly established itself as the essential guide to mobile technology in South Africa. Going Mobile starts where Wireless left off and shows how the vision for the future is becoming a reality today. Wireless talked about the future high-speed wireless technology called WiMax, and already WiMax services are being offered commercially. The future is rushing up on us so fast that the time for a new edition of the Hitchhiker's Guide is now. As in Wireless, we ask the critical questions: What does it all mean? Where is it all going? How do ordinary people tap into this communication revolution? Here is a guide that once again catches the wave of interest and activity, that taps into the buzz, and also sets the mobile agenda for ordinary people and businesses throughout South Africa.