Verizon has quietly joined AT&T in beginning to enforce the requirement for a hotspot-capable data plan on its network. At least rooted Android users, and likely jailbroken iPhone owners as well, are being redirected to a special referral page when they try to connect to a device sharing its 3G or 4G connection, telling them they need to pay $20 extra a month for the access. The change only appears to have come into effect within the past day.