Extracting the Bs-B-bar s mixing angle from B→VV decays and comments on the puzzling B→K*l+l- decay

Three different strategies to extract the weak mixing phase φs of the Bs system using B→VV decays (Bs→K*0K-bar *0, Bs→φK-bar *0 and Bs→φφ) are discussed. Those penguin-mediated decays are computed in the framework of a new combined QCD-Factorisation/Flavour Symmetry Method. Also some comments on the recent interesting results found by Babar concerning the decay B→K*l+l- are included