What does 2gb a month mean! Iphone?

Ok so my sister just got an iPhone and her dad got 2gb a month and I'm getting my iPhone 4 tommarow. When it says you only get 2gb of data a month. Is that 2gb of memory or 2gb of Internet service. And when I'm at home can I turn that off and use my Wi-Fi and not use up the 2gb?

That is your data plan.
that is the internet you get to use on your phone when you are not on Wi-Fi

It's 2 gb of data. When you connect your phone to your home Wi-Fi network, it doesn't use data at all, so you don't have to worry about that.

It means 2 GB of internet data. Yes you can use Wi-Fi and save data. I also have 2 GB and it's enough. Just don't overdo it with navigation or heavy data download.

As a side note, every time you visit a website some data is downloaded (relatively little) so it doesn't only mean the downloads.

It's 2GB of Internet and that's not bad I have 2gb and I never go over mine and i'm always on the Internet and yeah you can connect to Wi-Fi and it won't use your data

2GB of internet (data) service.
Yes, Wi-Fi usage means no data use.

It means 2gb of Internet a month and yes when there's is Wi-Fi available you can use it and it won't waste your 2gb, I have 2gb also and I'm on my phone 24/7 (Facebook/twitter/YouTube/) and I have only used the whole 2gb once in about 6 months so it should be enough unless your like Internet crazy lol, hope this helps.