so will the iphone 4S work on the SEROP / $40 plan since it is only 3G? I am sure the details will be released in the next day or so.
According to this post
in the add another SERO line thread, from someone who spoke to a CSR (so take it with a tablespoon full of salt), the iPhone 4Gs will cost $50/month on SEROP. If that holds up, then I called it!=)