Samsung's Nexus S is currently the only smartphone capable of NFC transfers in the U.S. Photo: Jim Merithew/Wired.com

Silicon Valley wants you to do away with your old, beat-up leather wallet.

PayPal introduced its money transfer widget at the MobileBeat technology conference in San Francisco on Wednesday. PayPal’s new widget uses Near-Field Communications technology, which lets you pay for purchases with a wave of your smartphone.

PayPal’s widget allows for money transfers between two NFC-enabled phone holders. Say you want to transfer money to another PayPal user. They’ll request a specific am...

PC game Terraria turns mining into addictive gold.
Image courtesy terraria.org

Terraria has been out for a while now, and it was included in Steam’s last sale. My friends raved about the $10 title even though it doesn’t look like much in screenshots. When an online buddy bought a copy for me, I took my PC to a friend’s house to play with a group.