Right, I get that now. But I still believe that the amount of free RAM does affect overall system performance. I'm not worried about having things running in the background, but I'm curious if 25mb of free memory sounds low for an Incredible. That's why I was asking what others are getting.
Sorry, but you'd be wrong. RAM is specifically designed to move information in and out/change it extremely fast. That's it's entire purpose.
Now, if all of the currently running apps fill up your RAM, that's another story. Running out of RAM will cause problems.
However, if any of it is not actively running ( and honestly I think on the INC it could actually be difficult to use up all of the RAM. ) it can easily be overwritten for something else that is trying to use it now. Again, this is the purpose of RAM. New data can be inserted at any point in the RAM, overwrite anything, or write to a new section...all at the same speed.
PS: I run mostly stock and I still only have about 100 meg free. Don't worry about it unless you get a message that there is not enough memory.
Also, if I ever need to shut something down, I first try to do it inside the app itself. If that doesn't work, I go into settings->Applications->Manage Applications. Press Menu->Filter->Running. Then you can go through and close what you want. This should be a last resort though. Whenever you do this, or use a task killer...there is no clean up. Cache, Memory ( yes, RAM ), etc are not cleared properly. The App stops immediately. This is why it is not recommended to use any task killers, because all of that junk can add up over time, and the app killer itself uses power and resources when most of the time the offending program was actually idle and not using any by itself. ( Most of the time...there have been plenty of issues where apps are getting stuck awake. )