If it matters, i'm using a HTC Sensation running the stable release of cm9. The problem is on the storage settings it says i have 151mb free. However in the apps settings it shows that i have 507mb free. Why does is have such a big difference? I believe its 151mb since updating/install big apps would give me an "insufficient storage space warning"
One more thing. When i open the apps settings it shows 152mb and then slowly increase to 507mb.