Today only, but they have the promo weekly. As others suggested, search for codes, they ALWAYS have them.
My Dinc is still on order. I haven't decided if insurance is worth it. I've had cell phones for almost 20 years now (ha-ha basic plans had 60 minutes back then), and have never lost or damaged one. If I had paid insurance over all those years, I'd have spent a lot of money.
The way I look at it is (Asurion):
$89 deductible.
$6-$8/month.
So if I take a swim with my phone, six months into my contract, I'll have to spend $89+$36=$125 to get a new phone.
6 months from now, I'd be able to buy a used Dinc for probably $200. Or a Droid or Eris for much cheaper. Then in another six months, I can get a new phone at contract price. So I'd almost rather take my chances and not waste the money...
I'm a person that gets a phone at the annual upgrade point. For that reason, SquareTrade doesn't make sense for me, because I'm essentially paying ~$120 for a two year warranty, used for one year (granted it is transferable).