An answer to the question about Instagram acquisition from Robert Scoble on Quora implies that Instagram acquisition can in essence be regarded as an acquhire operation for mobile:

http://www.quora.com/Facebook-Instagram-Acquisition-April-2012/What-was-it-about-Instagram-that-made-it-worth-a-1B-acquisition-by-Facebook

... which also implies that Instagram team will provide many other mobile products inside Facebook.<p>My question is, how frequent does that happen?

What are the examples that show things are better for acquhires and their new companies, in terms of resulting products?

Would it be better for them to keep going with their project independently?