Google announced last Friday, day 7, a new feature added to the service Docs. Now the service has a video player.

Users can upload videos up to 1GB in WebM, .Mpeg4, 3GPP, MOV, .AVI, .MPEGPS, .WMV and .FLV formats. The maximum resolution of the videos is 1920 x 1080.
To activate the player, just upload your video to docs and click on it.
Source Google Docs Blog