Re nitrocuadam's question immediately above, see:
http://www.amazon.com/Kindle-Wireles.../dp/B002FQJT3Q
"Kindle also includes free built-in access to the world's most exhaustive and up-to-date encyclopedia, Wikipedia.org."
How good the Kindle 3 WebKit browser is remains to be seen.
I have a locked-down employer-supplied AT&T 3G BlackBerry, on which most Wikipedia searches yield a message stating that the page is too large to load. Given Amazon's statement about their new device supporting Wikipedia, this should not be a problem.
P.S. The Amazon.com Kindle 3 advertising puffery would be arguably correct if the Wikipedia access only worked on WiFi, not on 3G. I just assumed that they wouldn't do this.
P.P.S. The Kindle 2 can bring up Wikipedia pages over the cell phone network, so the Kindle 3 should be at least as good at it.