Facebook's $1 billion acquisition of Instagram has gotten the whole world talking. Why do they need Instagram? Why would they pay so much? What are their long term plans? Although it is tough to accurately answer any of these questions, it is clear that Facebook wants to make a bigger splash into the mobile world. The user experience for most Facebook users is on a desktop, and the company is a bit worried about their future in the growing Mobile environment. What do you think? Great buy or money pit for Facebook?