JaZ99
I was there 2 days ago. And no, there is no glacier there. Instead, there is a small lake formed. The glacier is about 1000 meters from Baregg restaurant.  I think there must be a public resource available (University, perhaps?) with more recent data. Acording to this pub: http://glaciology.ethz.ch/messnetz/download/untgrindelwald_en.pdf the glacier length shrunk about 2km since 2007. But I failed to find more detailed information.