This is very aggressive pricing from Google. With Microsoft offering 25GB for free (although for a limited time, and only to its existing users), and Google off

This is very aggressive pricing from Google. With Microsoft offering 25GB for free (although for a limited time, and only to its existing users), and Google offering 100GB for $5/mo, the online storage space is finally heating up. The tight integration with Google Docs, and (in case of Microsoft) Office Web Apps, and valuable features like OCR and Image recognition means that these companies are now offering services on top of their online storage that Dropbox doesn't. Dropbox definitely has a head-start today, but Google and Microsoft have the scale to offer better prices, existing platforms to tightly integrate their solutions with (Android and Windows), and the brand-power to pull people away from Dropbox. This may be the first time Dropbox has some real competition.