If I jailbreak my iPhone, will Apple know?

I was wondering if I jailbroke my iPhone 4, would apple and verizon both know i did it? Would they always know i did even after restoring it? Also would they do anything to me because i jailbroke my iPhone?

Why does my iphone 5 keep dropping/ crashing my Wi-Fi?

Ok so i got my tmobile iphone 5 on the 12th and so did my sister the same day. Ever since then my Wi-Fi network is going haywire.

now when i'm on my network alone (sister iphone 5 not connected to network) my Wi-Fi works flawlessly. Though the bad part starts when me and my sister are home at the same time with both our iphone 5's connected.

i can't use any data heavy apps otherwise our whole network crashes and by crash i do mean the fact that every device in the house is kicked off and you have to wait five minutes for the Wi-Fi to come back. This happens as soon as i start using the Wi-Fi for apps like youtube or netflix more than just having the phone on stanby with it simply connected to Wi-Fi doing nothing.

like i said there are no problems when my iphone is the only iphone on the network.

i'm already on a replacement phone so i don't want to call for another replacement if the phone isn't the issue.

also the router we have is a linksys tmobile router WRT45G with WPA personal security.

when the problem occurs at the time there are usually only 5-6 devices on the network including the phones and also an xbox 360, ipad 3, and occasionally a laptop or pc. This problem never occurred when both me and my sister had samsung galaxy s 3's.

also my iphone 5 is currently running 6.1.2 while my sister is running 6.1.3
my previous phone was 6.1.3.

Please Help!

Added (1). Scratch tht the router is a tmobile WRTU54G i believe.

BlackBerry Messenger coming to Iphone? What are they thinking?

According to some articles and a recent interview with someone from blackberry and apple, it seems that blackberry messenger is coming to Iphone and will work with ios 6 and over. I have both a blackberry and an Iphone and I don't see why they would bring it. Dn't get me wrong it would be great, but as a business decision, why?

Why would they bring bbm to Iphone when their are other messaging services in the app store?
Why would they make it a free app but continue to charge their blackberry users £5 a month?
Why would they add skype to blackberry's when the defeats the whole purpose of using bbm?
Why would they add blackberry facechat on the new blackberry z10 when skype will have facechat aswell?

Do you think this is a good business decision? It seems to me that it doesn't make any financial sense.

Can I save my old iPhone photos somewhere without deleting them on the phone?

I have loads of photos taken from the past four months on my iPhone (around 630 pictures) but this friday I will be taking a lot more because I'm leaving school, So I want to clear my iPhone for more room and less memory taken up for the new photos I want to take of my friends.

Is there a way I can save my old iPhone photos somewhere other than iCloud? (it doesn't work for my laptop) possibly on a memory stick that I can access whenever without accidentally deleting them?

Your broadband modem is experiencing connectivity issues?

My wireless works fine with my iPad and iPhones. But then I try to connect it to my Windows 7 desktop, and it says that it's experiencing connectivity issues? I have the Ethernet cable hooked up to the main router, then my wireless, then into the computer. I've tried restarting them both at the same time, but it's still having the same issue?

IPhone 4 or Windows Phone 8?

I'm choosing between an iPhone 4 and a Windows Phone 8, either a Nokia Lumia 520 or 620. I've got an Android currently and never going back so that's out of the question.