[noobiscus]

"Is there any front where google managed to beat a good established product (except Android) ?"

Are you serious? Try WEB SEARCH.

Actually; Web Search Web Advertising Web Based Email Online Mapping

They're not exactly failing in the Browser market either.

If you stop thinking in terms of Buzz and Wave etc, Google, when entering an arena with an existing proven market to attack, have a record of becoming the big dog in the yard quite handily.