The iPad PDF Reader Roundup has been published!
Feel free to read it at http://www.iphonelife.com/blog/87/ultimate-pdf-reader-roundup - and don't forget most of the info is in the comparison & feature chart at http://www.winmobiletech.com/082010PDFiPadRoundup/PDFViewerChart0818.html , not in the article itself.
Comments are welcome!
Disclaimer: these articles (and particularly the chart linked as second) are huge; this is why I cannot just cross-post the information here. Sorry for the external links.
iPhone 3G (3.1.2 8G), 3GS (4.0 32G), iPad 3G 32G, iPT2G (4.0 8G), iOS 4, MBP 17" (2009 late model): 2.8GHz / 500G / 4G / WUXGA