Do you use Dropbox?

I don't use any of these services, but coincidentally, box.net was
brought to my attention. Folks I respect say their policies are less
worrisome than dropbox. Apparently they're offering, through March
23, an upgrade to 50GB of storage for free forever, if one installs
the smartphone client and logs into the service with it.

In case it's useful to anyone here.

De