Search is still very very big, we might just be at the very beginning of it. Search doesn't mean finding something on a website. Search means finding music, places,<meaning full information> etc . And they are doing great with things like Youtube, Maps, Gmail, Hangouts etc.

>>once search tanks, and the trends in mobile are pointing in that direction

That won't happen any time soon, not even in the foreseeable future.. The nearest competitor to Google is Bing, and that is joke.

>>They can't even handle acquisitions

Which ones? Youtube, Maps, Android ...

>>Android is slipping away

Android is going to put Google in the position Microsoft was in the 90's and early 2000's. Android is running away with the market in countries like China and India.

Google has a lot of time at their hands. Unless they start making very big mistakes over years consistently, they will do fine.