How does ios 6.1 help an iPhone 4?

I just read what the details of the updates are and I don't see how it makes use of 1gb of space. I don't have Siri. And I don't use iTunes Match.Am I missing a reason to want this update?

How to Unlock 6.1 iPhone 4 on 04.12.05 Baseband?

I have iPhone 4, it was running iOS 6.0.1, and has just upgraded it to iOS 6.1 few hours ago. But now I have a problem after upgrading my iPhone 4 to iOS 6.1, it give me no service on the signal bar, ultrasn0w is not working now on my iPhone 4 with baseband 4.12.05, so how can I unlock it to use it on any carrier?

Does iphone 5 have turn by turn navigation with a voice navigator?

I love the nav on my droid 4 but the battery's got bad so I was looking at iphone. Feel free to tell me some additional things about it, but TO All APPLE FAGS: don't put down the droids and don't back up your statements with "it just works" or "it's so easy". There's no chance in hell you are getting best answer.

How to change my AppStore and iTunes language to English?

I've always used the appstore on my iPhone in English, as my account is english. But suddenly its not in english anymore, oh no, its in ITALIAN! So now i can't update any of my apps, or download any new ones. And not only that, my itunes store is now completely in italian too. I don't even know how that happened… One week its in english, the next its in italian… And when i try to update anything, it says that my account information is not valid for the italian account, but for the english. I DON'T EVEN HAVE AN ITALIAN ACCOUNT!
i just need to know how to change it back to english because i really need to update my apps. I go to italy often, but this has never happened before, and the last time i went to italy was over a month ago.

IPhone 4S iOS 6.1 Jailbreak?

I updated to ios 6.1 OTA n den came to noe dat doing so will not let me get good 'APTicket' n nw dat most probably this Sunday untethered jailbreak for iPhone 4S, 5 n many other iDevices for ios 6.1 will be released, will i b able to jailbreak nw dat i updated OTA?

ITunes problem with iPhone 5?

I just got my iPhone 5, and I installed iTunes 11.01.
But when I connect my iPhone via USB to my laptop; it just charges. Nothing happens with iTunes nor with my iPhone.

I restarted the iTunes and my iPhone too. But nothing happened:/

Is there another program like iTunes for the iPhone to download songs?

Added (1). @Strange
Where is this setting? On the iPhone or iTunes?

Added (2). @Boomer05 Where exactly is it in iTunes?

ITunes sync for movies? What does it mean?

If I buy a movie from the official apple online store, it will definitely show up on my Mac iPhone and ipad. But if I buy a DVD from the store or VCD from my old collection, will the video be upgraded in terms of resolution to 1080p? Will these movies be automatically available as downloads on my ipad and iPhone?

If not what is the iTunes sync for movies for? What does it do?

Added (1). So if I get the file like tomandjerry.mp4 and throw it to iTunes Match on Mac, will it auto sync on my ipad?