Now that everyone seems to be carrying around smartwatches, Bluetooth headphones, and various other bits of electronic detritus, we need ways to keep them charged up when they inevitably die before the end of a long day. Samsung wants your Galaxy phone or tablet to be the backup battery for other stuff, like a Gear watch, via the brand new Power Sharing Cable. It's a little double-sided MicroUSB cable that allows one gadget to charge another, without any AC adapter or portable battery pack.

Read More