IIRC, "No"; those of us withe original SERO plans would "have" to switch an "Everything" plan (they have a SERO Everything plan as well, but it's barely a discount at all and supposedly requires more info to function).
Note the "quotes", because I'm still holding faith that it'll be possible - it's been said "it's can't be done" by them before, and then done just fine with some (sometimes very little, others very much) pushing; so it's always possible.
has anyone heard anything new on this subject? i'm pretty content with paying 40 dollars a month with my centro and sero plan but would love a pre