Can you use wifi on a phone that is not activated?

My dad has an old windows smart phone that he never uses that is capable of wifi. He actually gave me his old blackberry, but I feel the price of plans are absolutely atrocious! Not to mention pretty much everywhere I'll be spending a lot of time where...

My friend might give me her old, un-activated iPhone 4 (by un-activated I mean that the phone is NOT hooked up to a service provider). I already have a cell phone, but would like to use the iPhone for the camera and music... it's free so why not right...

will the app "wheres my droid" work if if my phone is not activated? i use wifi and to message people i use textfree and text plus. i have my phone on vibrate or silent i dont member but will it still work? it says to txt "wmd ring"...

Can you use a blackberry phone (unlocked), to connect to wifi if it is not activated?? Can you use blackberry unlocked phone with tracfone or net10 service??

what are the advantages and disadvantages of wifi against 3g? their speed, stability, affordability, and reliability... why do phone companies still integrate wifi in their phones wherin their phones already have 3g. what's the use of having 2 of these...

Long story on why i dont have a cell phone right now, So i am wondering if there is anyway i can use "straight talk" from walmart and use that on my ipod to turn into a regular cell phone. I have apps on it to text but i want to be able to...

I work at a nursing home and we are now going with computers and doing away with paper work so, i noticed on my break during lunch my phone popped up saying wifi available so i checked my wifi settings and noticed the name of the nursing home and it...