PayPal launched their mobile payment service yesterday. You'll be able to buy stuff via PayPal instantly if it's got a "Text to Buy" label next to it; say like if you're in the mall or something. Very interesting direction for the payment service to take...

"This spells trouble for existing mobile payment provider TextPayMe. PayPal’s solution is fully baked, easy to use, and has some great features that take this beyond a way to text your friends money."