Whenever these ridiculously huge acquisitions take place, it's always the same. How can Google possibly think that 20 billion couldn't have created something far better than anything Motorola has to offer. They have the talent, the infrastructure, the money, the manpower.
I think speed is often the issue with in-house development. Sure, you could make a pretty good product by spending a few billion dollars, but you won't get it next week. An already established install count has to be worth something too.
The Skype deal felt like just the same...