thats true about task killing, but face it, we dont have nexus 4 with 2G of ram. we barely have 400M. and that is a easily eaten with couple of apps..
so i am using Ram booster, but selectively killing apps, that are not on my daily using base..
i tried using swap, but seems with n luck.. so im forced to use something to make my phone, work like phone.. until I i get my hands on something more powerful than skate..
its like smoking.. you know its bad..
This phone is not a powerful device, but for normal usage, like browsing the web, watching youtube, social apps, media apps etc, I find it strong enough. I dont think Ive had any big lags or chokes that are caused by lack of memory (usage), on this ROM or CFX3. Far from expert here, but "memory management" looks to be nicely done on these newer systems.
Though to be frank I do try to manage how I use the phone, usually by exiting (rather than minimizing) apps that I use for more than a quick glance.
Also, an app that I would recommend is System panel. It shows which apps are actually running and which are just cashed in memory, and which are used by processor power.