Kindle for PC is out this morning. It's a simple download at Amazon that lets you read Kindle ebooks on your computer. That means if you already have a Kindle, or an iPhone or iPod Touch, you can sync your Kindle reading purchases across all of them. (No subscription material, from what I could tell.)

The software installed within seconds, and the Kindle for PC application quickly opened with an Archived tab showing all of my Kindle books. I clicked on "On the Line," tennis star Serena Williams' autobiography, and began reading it at the page where I had left off on my iPhone.

Kindle PC incorporates the touch capabilities built into Windows 7. For now, if you have a touch capable PC you can zoom in and out of text with a pinch of your fingers. In a future release of Windows 7, you'll be able to turn pages with a finger swipe, Amazon says.

By Nancy Blair