Will all functions work in unlocked iphone?
Yes, and unlocking it allows you to use other service providers.
If you have an iPhone 3GS jailbroken and unlocked and you want to use the new wind mobile in Canada Will windmobile work with your iPhone?
Will unlocked iPhone work on work 3 network?
Will unlocked iPhone work on tmobile?
Yes it will, but it will not support 3G. It works on the Edge network just fine.