Is there really free cloud storage? If you own an iDevice, you can score 50GB of it, good forever, with no strings attached. That’s the deal being offered by Box.net: 50GB of online storage for anyone who installs the Box.net app on an iPhone, iPod Touch, or Pad. Box.net is cloud-storage service alot like Dropbox and SugarSync. After uploading your various documents, media files, and the like, you can easily access them online, share them with others, stream media to a mobile device, and so on. The app itself is free, as is the Personal account you’ll be creating. And if you already have an account, merely signing into it gives you that 50GB bump. The promotion runs through December 2, but you get to keep the 50GB forever. And that space is available anywhere you use your account, not just on your handset or tablet.