i used to have the incredible and got that warning from time to time. in my opinion, it's a bit premature, and i'm not sure why the device warns you when you clearly have plenty of space. try clearing out old text message threads and try clearing the cache in some of the apps (facebook, internet, etc, etc). this should get rid of the message. also make sure that she powers it down completely from time to time. there's an app i used to use called "history eraser." you could clear all of the caches at once. you just have to make sure it works with her inc because i noticed that on my tbolt i would select "clear caches"....but when i went back into the apps, they had not cleared.