Google introduced their long rumored cloud storage, Google Drive earlier this week, and it seems to have given Google's competitors something to fret about. Microsoft, one of those competitors, has decided that an upgrade for their Skydrive users seems to be a good way to spice things up.
Users who have a Windows Live, or Hotmail account can now choose to upgrade their default 7GB of storage to 25GB for free. Only those who have utilized at least 4GB of their allocated storage space will have their account upgrade automatically.
According to Lifehacker, the updated Skydrive also raised the limit on how big your files can be. The 300MB limit is now 2GB, so that file sizes are a lesser concern when you use its new folder syncing capabilities (similar to Dropbox).
This free upgrade is only a limited time offer, and it's likely deployed to reward frequent users and to get some buzz going for Skydrive. As of now, there are no indications when this offer will end.