Final answer:
Microsoft's acquisition of Nokia was considered a risky purchase for the software giant as Nokia struggled with the transition from their Symbian operating system to Windows-based devices. Today, Microsoft is facing challenges in the phone business, validating the skepticism surrounding the Nokia purchase.
Step-by-step explanation:
Microsoft's acquisition of Nokia was seen as a risky purchase due to Nokia's difficult transition from their Symbian operating system to Windows-based devices. Initially, the partnership between Microsoft and Nokia produced Lumia, a Windows-based Nokia phone. However, the transition was more challenging than anticipated. Despite the initial skepticism, Microsoft is now struggling in the phone business, indicating that the Nokia purchase was indeed a risky move.