* NOTE: This didn’t occur to me before, but this applies to ANYONE with an iPhone who upgraded to the new OS.
Here’s a little tip for iPhone 4 users that I just learned from a colleague who visited an Apple store over the weekend – as a result of the new multi-tasking feature, every application you’ve ever used is open right now on your iPhone, in the background.
If you’ve been suffering from degrading performance, including but not limited to your outboundphone calls taking 5-10 seconds to start ringing and general slowness in other areas, this is the cause.
To see how many apps you currently have open simultaneously, double click on the button and scroll to see how many are open. Someone actually asked me “which button” when I was telling them about this over the phone. In case you have a similar question, I’m referring to… the *only* button on the iPhone 4.
Anyway, once you’ve double-clicked the button, hold down your finger on one app to bring up the minus sign and close to your hearts content. Rinse and repeat daily until Apple figures out a solution.