Phoenix Freeze auto-locks laptops via smartphone
A new product from Phoenix Technologies, <a href="http://www.phoenixfreeze.com/">called Freeze</a>, lets you use BlackBerry or iPhone Bluetooth to tell a PC that you're leaving the area and want it to lock up. When you return, Phoenix Freeze can also automatically unlock the machine so it's ready for you. However, it only works on Windows PCs, doesn't support 64-bit platforms, disables all other Bluetooth peripherals and seems to be a bit buggy for an official release. Phoenix Freeze for BlackBerry and iPhone