on my unlocked iphone 3g, i have a terrible netowrk plan (wel good for me for everyday use), but it does not have enough megabytes for tethering with a pc/laptop. I have a friend with lg neon and a unlimited internet broswing package for 1$. lets say i plug his sim inot my phone, will i be able to use his internet while tethered? Will my comapgnie detect its no longer a neon but a iphone
