IPhone Wi-Fi with T-Mobile SIM card?

I previously used a Nokia and I have T-Mobile. I didn't have texting or internet. If I use the SIM card on my iPhone and use Wi-Fi, will I get charged at all? I know it's a silly question but when I used my iPhone months ago, the bill we got was higher than usual.

Fix no service iPhone 4 any tips?

Ok so I brought a iPhone from this person who was selling it so I brought it when I got home an tried all sims non of them worked. So when I click on settings then phone it says the phone number in the iPhone but still says no service. Its also jailbreaks this iPhone. So can some 1 please tell me some tips on how I can get well repair the no service. An last night it got froze shud I restore it but I'm thinking not to restore it because itll take the jailbreak n I might need it any ideas please

Is the verizon wireless mobile hotspot unlimited?

I'm moving to an apartment and thought that maybe instead of an internet plan (since I'm not getting cable) that I would just upgrade my phone data plan to include a mobile hotspot on my iPhone, and get the internet on my laptop via the mobile hotspot on my phone. What I'm still unsure of is this: is this unlimited internet usage, or is it like a data plan with a limited amount of internet usage? Or is it basically just like any internet plan where you pay one price for unlimited internet. Any help would be appreciated!

First time charging an iPhone 4?

Bought it today! And i love it!

just wondering how should i charge it for the first time?
do i let it drain completely or charge it to 100%? And do you guys have any tips how to make the battery last longer between charges?

Where can i buy a iphone 4 logic board?

I need a new iphone 4 logic board, i can't afford to get a new iphone, so I was wondering if anybody knows where to get a new motherboard. I looked on ebay, but i'm not so trusting with the sellers on there. If anybody knows of a legit site that won't break the bank, I would really appreciate it.

Can I use an iPhone in Israel?

So as of now I live in the United States but i'm moving to Israel for about a year. I know that in Israel they use Sim Cards for phones and I was wondering if I could use an iPhone in Israel. Do they even sell iPhones there? I also text a lot if that changes anything?

Iphone 3g fell into water & won't connect to itunes?

So, my iPhone 3g accidentally fell into the toilet after it got knocked off a shelf. I took it out & immediately dried it off and then shut it off. I put it in a bag of rice and left it there. Now it won't turn on to the lock screen but when I plug it into my computer it says to connect to itunes. When I opened itunes, it won't connect, the screen just stays the same. I can't restore it either and when I disconnect the iPhone from the cord, it shuts off. I need any form of help to get it to turn on unless I just need to take it to the Apple store.