My Sensation upgraded to 4.0.3, which I presume is Ice Cream Sandwich, and since then have been getting a warning message quite regularly that the memory is too low and over 90% of it is used, do I want to clear it now. When I looked at the running apps, it was apparent that this is the problem and where the warning message is coming from. It said that of the 592mb of ram free that around 530 was being used. I am using Go Launcher which appears to be taking up about 45mb of ram, perfect app lock which uses 17mb and Lookout Security which uses about 40mb. I decided to delete Lookout to free up some ram, but keep Go Launcher and Perfect app Lock. However, the ram still is up around 500mb and I still get the warning quite often. Does anyone else get this and is it that the update is too large for the ram in the phone? I'm surprised Android allowed the update to this phone if it can't handle it!