I'm having a weird problem where suddenly my iPhone (4, 6.0) now has no free memory, even once I have quit all the apps. Very few JB apps will now run (they crash when they try and do too much, probably for lack of RAM). I'm down to <30MB of free RAM with no apps open. Springboard currently has RSIZE of 308M and VSIZE of 712M. This started happening today, after which I had a major problem where my SB took up only a quarter of the screen, and the rest was flashing colours. I gather that this was a problem with A3Tweaks APEX tweak. Upgrading it fixed the problem, but SB is still taking up way too much RAM (weirdly, because I haven't installed anything new or upgraded since APEX came out a week ago). Any idea what's going on? My iPhone has become almost unusable.