Amp'd Direct Topup

Dunno if anyone has heard of this, but BabbleBug.com (one of the many online cell phone airtime places) just got in this neat little thing called Direct Topup, and it works on Amp'd. Basically it's an Amp'd PIN without the PIN...you put your phone number in on their website, pay for the airtime, and it goes directly to your phone. Sounds pretty neat if you ask me...