I want to know this as well. Google Drive also will stream your media, and allows files of any filetype for general storage. Also, easy sharing with anyone anyone on the web (even people who don't have a Google account).

- Unlimited space vs. 1TB

- No sync required + native integration into Finder/Explorer. With Google Drive you have to sync (i.e. store locally) to open files with your native app like VLC, or you have to view them on the web if you don't store them locally, which is a hassle for the average joe, and a deal-breaker for the media enthusiasts/XBMC/Plex-ers.

- HLS adaptive bitrate streaming. Google Drive limits the quality, whereas we'll fluctuate the quality of the video based on your bandwidth.

I have a library of media that is in the multiple terabyte range, and growing. The cloud storage services I've investigated have been wholly inadequate, or too expensive. For me, this one seems like the sweet spot, especially if I can get that early-user discount.