Originally Posted by
ThePixelDoc 
Ads... and serving up as many as possible, on as many platforms and content as possible.
Android
Was only developed and released free to serve up mobile ads. (period). Even developers acknowledge this fact, considering that the Marketplace doesn't seem to be working well for developers that would like to be paid outright for their efforts.
Search, Books, Services, Maps, Gmail, etc... is ALL about ads, nothing to think that the WebM ploy is about anything else BUT ads.
WebM
When released and integrated with their own devices, without a doubt, will have a Java-based layer to overlay ads. And surely the proposed WebM Plugin will be the same as Flash, but just different enough to get out of a patent dispute with Adobe.
You think for a moment that Google embraced Adobe and Flash, integrated it into Chrome and Android, without "looking under the hood"(?), or getting something other than a "selling point"?
WebM Plugin
This is seriously sinister, since it would allow Google to even serve ads overlayed on content that they are not serving on their own servers/services, since the layer code is built into the plugin.
Think: Vimeo, Facebook, or your own website's videos being overlayed with ads because the WebM plug-in is needed/installed. This without needing the consent of the owner of the video or the server publishing it, since Google received the consent to do so, by the end-user accepting the EULA when they installed the WebM plugin. Not to forget, but Google Analytics will also be built into the plugin, naturally, for it to be able to work properly.
At the moment, I doubt Google would try this trickery with H264, and besides they don't need to, because Adobe's Flash takes care of that for them with their wrapper.
NOTE: fact is that Google and many others are working on a way to overlay HTML5-H264 videos with ads anyway. One way or another, HTML5 video will have ads, and there's nothing anyone can do about that.
There is no such thing as "free". There are and always will be strings attached. And no, I'm not wearing a tin-hat or thinking conspiracy. Actually, you have to see this move by Google as doing good business and keeping focused: sell and deliver more ads!