How do you disable the iOS Storage full alert?

Question

I've been getting close to filling up my 16 GB iPhone 4 with iOS 5. I have freed up some space and have 1.5 GB available, but I keep getting alerts that are annoying.

Is there a way to disable the alert or change the threshold for which it is triggered?
Here's what the alert says.

Answer 1

Apple do not provide any way to stop what it perceives as important alerts.

That said, for those with jailbroken phones, popup blocker provides the required functionality

Edit: the original question is answered in the most part, but i think the real question should be 'Why am i getting the ios Stoage almost full" alert.

this is either a bug, or you've got a lot of mail stored on the phone...

There appears to be a few users with the same issue over on the Apple support forums here

Answer 2

Definitely a jailbreak issue. A quick cure would be to, go to notifications; reminders; Alert style: change to none or banners. I recommend none. Until we get a better fix.