Shares of Hewlett-Packard (HPQ 0.83%) spiked up today, after the company released earnings after hours last night, largely due to Q2 guidance that was significantly higher than expected. In this video, Motley Fool tech and telecom analyst Andrew Tonner tells investors that, while this is definitely encouraging news, this company is still in the middle of a dramatic shift in its business model, as the PC market continues to decline There are still a lot of risks here.