Not sure what is causing this but it seems like a battery pull a day is what it takes to keep the memory leak away. File free was around 12000000 this morning. I did a battery pull and it went to 60000000. I just checked it and its around 9000000. As I write this it seems to have jumped to 10000000. I don't have any apps that are constantly pulling down large amounts of data.
Ok I just put my battery in and its resetting. we'll see what the file free goes to now.
Best thing to do is install softreset (do a search for softreset, I posted links to it earlier today) & once a day, do a softreset. That was you don't have to constantly take your battery door off to pull your battery. Its just LIKE a battery pull. Its a BB thing, RIM's units ALWAYS leak memory when they first come out. I've had 7 Rim Units in like 4 years.
I've also noticed this on mine, went through and got rid of task manager, all the languages, VAD, and the app store, over 50m free now......
I did notice on my pearl, after I installed 4.5 my memory jumped all over the place for a few days too...
hmmm, might be a problem with yours? Mine has been on non stop (using internet, texts, IM, etc.) since about 11 AM and I have file free showing 23,316,740
