PogoPlug is a company, service, and device. The service just got a lot more useful for a lot more people.
The device is a small computer that starts at around $99. Plug USB drives into it and you can use it as a file server. Give it an Internet connection and you can then use the PogoPlug service to access those files from anywhere in the world.
PogoPlug announced a new app for OSX, Windows, and Linux today that does away with the need for the device. Got a spare computer? Run this new app on that computer and you now have a content server. You have your own cloud storage which you can access from anywhere you have a web connection.
I know stuff like this has been available for Linux for some time now, but it was intended for the Linux geek, not the average user. This is very exciting. Why pay Amazon $1k a year for a terabyte of storage when you can build your own RAID for half the price?