I was getting a low storage space on my Lumia 925 ... and by looking at Storage Sense found that the Facebook Beta App was using 1.9 Gb... app was only 11Mb... why does it need to store all that data? with the storage size of the 925 this is a big problem... what I did was uninstall the application and re-installed it... got rid of the 1.9Gb... but again... why does it need to store so much data. Didn't check if I could've cleared the cache though... hmmm