Amazon is giving away a PDF reading app in it Android Appstore today. Normally it sells for $.99, and free is a very nice price.
I have the app installed on my Viewsonic gTablet, which brings me to a minor problem. The minimum OS requirement is Android v2.1. But this app is easily better than any of the free PDF apps I’ve tried. It even surpasses the official Android app from Adobe, which is rather amusing. It supports text reflow, pinch-zoom, search, annotation, copy-paste, and it opens password protected PDFs.
Get it now.