Using my iPhone abroad- Internet charges?

I'm going to Perth in Australia & Hong Kong next month. My iphone is with Orange in the UK and my internet is normally free. In both places our hotel has Wi-Fi so can I use my phone for free abroad in Wi-Fi spots? I don't want to get home to a massive bill.
Out of interest if I used whatsapp in non Wi-Fi spots to send a couple of messages to my friend in hong kong is this going to cost me a fortune?
And what buttons should I press on my phone to ensure the Internet is completely off when I want it to be? IPhone 4.

IPhone 4 ATT - Can't restore iPhone?

I just can't restore my iphone 4 for att I want to use. I've done different types of restore with shift restore with cutsom ISPW, tried jailbreaking restoring and turning off all my firewalls while doing the restore too. I get a error saying that i can't restore iPhone and a (-1) can anyone help me please? Show me a link to a vid or you can show me threw skype if your a tech expert.

Added (1). I have already put it in DFU mode and it still doesn't work. Anyone know a jailbreak that can restore my phone some how?

Flashing iphone 4s to cricket in las vegas?

I been wanting the iPhone for some time now. Finally Cricket and Apple got smart and decided to put the iPhone on Cricket. Cricket sent me an email promoting the release and I got so excited, But when I clicked on the link to see details on the phone it said it wasn't available in my area ---.
Anyone who lives in Vegas knows the frustration of getting EVERYTHING late. So my question is it still possible to get a CDMA iPhone 4s from Verizon or sprint and flash it to Cricket? I heard they signed a contract with apple stating that they wouldn't flash iPhones, but that's really unfair for the customers who want an iPhone and would pay for it but can't because it wasn't released out here yet. So does the rule still apply if some cricket locations don't have the iPhone yet? My flashing knowledge only scratches the surface. Can someone point me in the right direction? Like sources and etc? I remember when I bought my android phone some time back at the Rainbow and Charleston location and one of the workers had a flashed iphone 3gs. Does anyone know someone who can do this, i'm desperate! Any help would be greatly appreciated. Trolling will be ignored.

Why do People HATE the iPhone 5?

Before judging me, please read my entire question.

I had owned the EVO 4G droid phone for 2 years. When I bought it in 2010 I loved it, and had no desire to switch to Apple (besides Sprint hadn't gotten the iPhone yet). After three months though, the phone started getting glitchy, crashed a lot, and even with updates (Gingerbread, Ice Cream Sandwich), it just wasn't smooth at all.

I was eligible for a phone upgrade, and last week I bought the iPhone 5- and am in LOVE with it. Smooth interface, great camera, fast iOS. That is… Until I went online and read the COUNTLESS reviews from Android bloggers claiming the iPhone is Apple's worst yet, that Apple is way behind in terms of technology- that all Droid phones have better specs and faster processors. Which is ridiculous because when I had a droid phone it was a total mess, and I love the iPhone! But I don't want to feel like I was duped, and based on the Droid boards- I'm crying right now because its too late for me to return the phone, and many people said I should have gotten the S3 Galaxy.

Why do I feel this way? I was so happy to get the iPhone until I read the reviews of Droid users saying that they hate Apple, we're all iSheep and that the Droids are better. I don't get it. What can the Droid do that the Apple can't? All I want to do is check emails, browse the internet, have quick responses. I'm not into customizing or "configuring" like many of the nerds that love Droid seem to brag about. But I feel terrible that I just signed a 2 year contract for a phone that apparently isn't as great as I thought (and I do like Sprint, thats not my complaint). How can Droid bloggers claim Apple sucks when the reviews I read on CNN and enGadget claimed otherwise. What is going on here?

T mobile $30 prepaid card and iphone?

How do I get the $30 prepaid (unlimited web, talk, and 100 minutes) card to work on an iphone 4s 16gb phone?

I don't have an iphone, but I plan to leave sprint as well as upgrade from my itouch 3rd gen in the process so this seems like the most sensible way to do so. I heard I need an unlocked iphone was needed? I was wondering if there was any way to insure it too?

Thanks for feedback.

Added (1). By switching I mean I'm not gonna be with sprint at all and start fresh with the plan I stated with the unlocked phone that I'd have to purchase separately

What happens after iPhone 4s contract ends?

So i'm getting a iPhone 4s and when the 2 year contract ens will the gps work will they take my sim card can i restore it without a sim can it run off Wi-Fi will siri work on Wi-Fi. Can i call people with Wi-Fi.