My iPhone keeps randomly quitting?

[Totter]

It usually happens when I am using the Youtube application and the Safari application, but it can happen anytime. Whenever I am using my phone and it lags or slows down for a moment, it stops working for a few seconds and then sends me back to my homepage. At first I thought it was because I had too much memory on my phone, so I got rid of most of it. It still keeps quitting. I noticed it will most likely happen when I try to watch a youtube video or reload an internet page. If I try to make my iPhone do more than one thing at a time (such as turning down the volume and pausing the video), it will send me back to the homepage.

tl;dr: My iphone randomly quits out of applications if I go too fast or do too many things at once.

Please help, it is really annoying. I've tried shutting off my phone and resetting everything, is there anything else I can do?

 

[sneakyob]

Happens to me when I am using Gmail all the time also.

 

[AiralynRose]

Restore the phone and don't use a backup. See if starting fresh helps. Also, don't load all the apps back on at once.

If it continues to be a problem and is under warranty try taking it to the Apple Store and see if maybe there is an underlying hardware problem.

 

[anamznazn]

It happened to me too. Just restore the phone.

 

[0970373]

I've noticed this as well on my phone. Sometimes it'll freeze and then shut off. A few times, the screen looks all wonky for a sec and then shuts off. Hard to explain but it's kind of like if your TV dies and the screen colors shift in a zig zag pattern. I can't duplicate it and I've restored and set the phone up as new. I hope it's fixed in 3.1.

Has anyone else experienced this with their screed right before it shuts off? Is this something I should go see Apple about?