Apple logo randomly showed up?

I have an iPhone 4S, I know there's going to be an update with the ios 7 soon, but my iphone just randomly went off and the apple logo showed up for abou 5 seconds, but then everything went back to normal? It didn't tell me to plug it into iTunes or anything, after the apple logo showed up it went back to the home screen. Why did it do this?

How to have two apple ID's on one iPhone?

My wife has had an iPhone for awhile now and has bought a few apps/games. I plan on getting an iPhone in the next two weeks or so and was wondering if I could user her apple ID to download all the apps she's paid for AND if I'd also be able to have my own apple ID set up for myself. I've heard rumors that if I were to just use my wifes apple ID I would get her calendar items, imessages ect… If anyone has any insight and also could tell me how to do this that would be great.

Can I connect a sony xperia z to a new ford ka via USB?

Wonder if anyone can help. I've just bought a brand new ford ka zetec which I'm really happy with, but unfortunately the USB port doesn't want to play the music on my xperia z. I don't have an auxiliary port unfortunately so I'm hoping to make the USB work. The girl in the garage where I bought the car plugged in her iPhone and the music worked perfectly and immediately. Is there any way I can get my music through the USB? It charges the phone, and connects via bluetooth to make and answer calls, but I nave a feeling it's only going to like apple products.