Barcelona 2008 would be perhaps the taking off point for femtocells. It was one of the hottest topics in the Mobile World Conference in Barcelona, and many operators and vendors took the opportunity to announce more than a superficial interest in the technology. Teliasonera has invited ALU to test its BSR (Base Station Router) Femto in-building mobile solution, as well as Motorola /UbiquiSys femtocell solution in Denmark. Telefonica O2 has selected NEC to test femtocell in the UK. Vodafone Spain is also carrying out tests in Spain with ALU and Huawei. In coming weeks we will see if it is just fashionable.