Will an unlocked iPhone 3GS work with family mobile with all capabilities?

My moms getting family mobile from Walmart to save money and I wanted to use an unlocked iPhone 3GS. Will it work with all capabilities?

I've wondered about this, and I'm sure it does, if it uses a micro sim card. Not sure though. Look up iphone micro sim card t-mobile, and then compare sizes of sim cards. Also hacking a 3GS can be hard, make sure you know what you're doing.

Yes, it will work fine on FamilyMobile but you won't have 3G on it. Although you can have EDGE and Wi-Fi so there isn't any issue. If you need unlocked iPhone 3GS at very reasonable price, mail me to yonoulee@gmx.com

Yes it will work fine.

How do i get the family mobile app market on my iphone 3g?