I would highly recommend creating at least some fake company or intention out of the page so you can say you wanted the domain for something else. With a name like "Crunch-Pad" I'd suggest making it a simple Web 2.0 to-do list like pat.io.
At least that way you could let them buy it off you if they were interested.
a) I registered the domain about 6 months before Techcrunch started calling the thing crunchpad, so they don't really have any claim to the name. In fact it wasn't them who came up with the name itself in the first place, it was one of the comments.
b) Plenty of companies make the same mistake of failing to register a domain name. If Apple didn't sue over something like iPhone and Dell over Adamo, I doubt there is much of a leg to stand on. + There is no trademark yet for crunchpad
Funnily enough, that story was posted on Techcrunch only a few weeks ago: http://www.techcrunch.com/2009/03/28/dell-belatedly-buys-ada...
c) I don't really plan to bend Arrington over the barrel on this. But I think it'll play better if he contacts me, instead of me just emailing out of the blue offering the domain. Since we all know how unlikely it is to get a response from Techcrunch