This thread seems to have deviated drastically from its OP, so in response to the OP, i too have the same issue with regards to RAM, and in my experience i dont think it has anything to do with the keyboard as i have swiftkey which uses around 20mb and my RAM sits at 600-700mb with barely anything open. To fix this i find myself having to reboot the phone and it drops back to what i would consider a considerable amount (250-350mb). However as time goes on, and it may even be sat in my pocket not doing anything, the amount of used RAM increases(again with not much running) until it is back up in the high 600's, this of course causes the phone to lag slightly especially when exiting an app for example. So every morning before i unplug i find myself rebooting the phone, and its damn irritating to be honest.
I've seen a few threads about this on the net but every single one seems to deviate from the original point with no answer/explanation or suggestion. I'm wondering if anyone else has this same issue and knows a fix for it? i'm currently on a custom ICS ROM-->RocketRom v7 as stock ICS had this issue particularly bad.
is it an ICS issue that we should wait for a fix for from Samsung or what? as i didnt have this issue on GB, and have been considering going back.
A simple thanks goes a long way