how about these android tablets? (I mention those because cheaper than an iPad)
they are close to the same price as the Sony 900 ($240), and Kindle DX ($360). and even less than the kindle dx
the pdf's I have do sometimes contain color (technical graphs etc) so the tablets would be nice, but the e-ink is a considering if its easier on the eyes. but since the tablets you all say are like reading a book, then I am not sacrificing the eink technology.
some of the tablets:
http://www.cruzreader.com/reader.php $200
pocketbook IQ (not released and no price yet)
samsung galaxy tablet
http://news.softpedia.com/news/Samsu...e-154161.shtml