It seems that, at the service of some YouTube videos can now be injected. In any case, the case with political videos: in the lower left corner of a link to download the file view. By the way, the files have the format mp4.
While it is not clear whether the service YouTube to provide users with the ability to download other files, but according to the news, Google has confirmed its intention "to provide this function more videos." Naturally, this option is the most anticipated user-defined functions.
Clips downloaded from YouTube, do not look very good when playing on a PC, but for mobile devices like the quality is sufficient.
Unfortunately, before Google will be able to introduce the opportunity to download a file from your video hosting, lawyers, corporations will have to overcome many difficulties, including the resolution of the problem with the protection of copyright.