BA Cityflyer have been using 2 x S2000 and 1 x E170 at LCY wet leased from Eastern for quite some time. One Saab in BA colours, the other two all white. It must be a fair bit of Eastern's turnover. I believe more recently they have also been using them at Gatwick as well. The Saab in full BA Cityflyer colours seems to have gone already and one in Eastern livery is currently operating.