State of the PC Industry - HP lays of 25,000

CNN Money: HP prepares to announce mass layoffs
http://money.cnn.com/2012/05/23/technology/hp-layoffs/index.htm

The company's PC sales fell 15% during the holiday season, with consumer computer sales tumbling 25%.

While the decline is steeper in their consumer PCs, their entire PC sales is down.

It's not alone. Dell, which faces similar struggles, reported Tuesday that the company's lackluster PC sales dragged on its overall profit and revenue last quarter.

back to HP

That trend, of movement in the wrong direction, is expected to continue throughout the rest of 2012

None of this is specific to desktops but you might imagine it's part of the picture. I'd guess (just a guess) that "consumer" desktops (non all in ones) suffer more than workstations.

For what it's worth, Apple's PC sales are doing well even if it's not the big revenue the iPhone is.

From everything I've heard (Apple doesn't break this out though), the lower selling Macs are 17" MBP and certainly the MacPro. Both may be going away. I still hold that doesn't mean "power" is going away.