@Chip Bennett - I just noticed how the domain policy says that those with WordPress in the top-level domain name should consider donating it to the Foundation. That wasn't there before but it makes sense.

@Blake Escudier - As a matter of fact, blakeswordpress.com would be a violation of the trademark because the trademarked term is in the top-level domain name. You can't use WordPress anywhere within the domain, sub-domains are ok.

@Miroslav Glavic - The WordPre.ss is an interesting question. I don't know the answer but I'd guess that it wouldn't be a violation of the trademark because technically, it is not WordPress. That dot prevents it from using the trademarked term. But in the grand scheme of things, WP whatever is much easier to type and remember than the alternative.