You make a good point. The difference is, when you have a disruptive technology to offer. Apple had it with the iPhone (microsoft is able to ride on Apple's coattails due to cross licensing). Thus, going to the platform that was dominated by nokia was viable... and as a result, nokia is in the decline (though maybe windows will save them.)
Google has entered the market with a low quality copy cat product outside their core skill set.
Google has entered the market with a low quality copy cat product outside their core skill set.