If you want insurance for your device on AT&T and you bought the phone or tablet over a month ago, you're normally in trouble. For a limited time, though, you can get their insurance regardless of the date you bought the device. Until March 31, AT&T is allowing open enrollment on any of their three insurance plans:

The most expensive tier, which was introduced last summer, can cover tablets and laptops that have no relationship with AT&T so long as there is at least one device that is tied to the carrier on the plan.