Basic question, as I am new to iOS. Coming from WebOS, which made it quite easy to close apps, I find the way iOS handles "closed" apps troublesome. I have heard many people say that these apps aren't really open; my IT people have told me that they have run into many problems that are solved by going through the absurd closing method (home twice, holding an app, then finally closing each one). Some of you seem convinced that these make no difference, but I have also had several issues that seemed to be solved by closing a bunch of "open" apps. The thing that prompted the post is that I downloaded an app (System Max) that tracks memory and CPU. On looking at memory in use, with a bunch of "open" apps almost all the memory is used (more than 90%, and in the red portion of their gauge). Deleting them opens up at least half of the memory. How can that NOT affect processes by the phone? Why is there not some easier way to definitively close down an app when you're done with it? Either I'm missing something obvious, or the system is flawed.