With 3G network Capex for Western Europe expected to be over $120bn - on top of the $105bn already spent on license fees - Europe's mobile operators have taken the global lead in pursuit of network-sharing arrangements. Operators must act quickly to negotiate and implement network-sharing agreements. Otherwise, they risk missing opportunities as competitors partner with others and launch services faster and over a larger coverage area. This report provides clients with a solid understanding of the many strategies and implications of network sharing through case studies of European operators. This report also covers the regulatory issues involved, as well as the benefits of network sharing from a range of perspectives.