Gmail may hand over IP addresses of journalists
wikileaks.org
wikileaks.org
However, before you burst into flames, note:
To comply with the law, unless you provide us with a copy of a motion to quash the subpoena (or other formal objection filed in court) via email at legal-support@google.com by 5pm Pacific Time on September 16, 2009, Google will assume you do not have an objection to production of the requested information and may provide responsive documents on this date.
So Google is notifying them, and basically telling the account holders to give Google a reason to motion to quash the subpeona. Which is good.
Court system totally willing to issue subpoenas which would reveal identities over what I'm assuming to be a civil suit filed by corrupt property developers after they were exposed (please correct me if I'm wrong.)
Google not instantly turning over the data, and asking the account holders to provide an objection.
Still less evil™
p.s. edit: I would also like to add that the Wikileaks editorial says:
According to the notifying letter from Google to the journal, Google intends to hand over the requested records without defense and suggests that the Journal file a counter-motion with the Santa-Clara court itself.
which I think is actually false, according to my reading of the notice Google gave the account holders above. This would also indicate the headline is inflammatory/linkbait..
"The government can get this information with no notice to you at all, and can also get a court order forcing your service provider not to tell you or anyone else."
According to https://ssd.eff.org/3rdparties/govt/subpoena
Btw, I think Wikileaks accurately reported on Google's actions. YMMV.
As for "the whole truth", it's up to the other side's lawyer to ask you the right questions; if you answer all the questions truthfully while you're on the stand, that is your only legal obligation. (If the questions are directly about your crime, you also have the right to refuse to answer.)
Anyway, if everyone were legally required to confess to crimes they committed, nobody would do that, and then the crime would be not admitting to a crime. By not admitting to that, ... the cycle continues, and with no evidence, there is no case against you.
More important is users "expectation of privacy"
I've never needed something like this but a quick search http://www.google.com/#hl=en&source=hp&q=secure+anon... leads me to believe there is a better solution.
Anonymous Blogging with Wordpress & Tor
http://advocacy.globalvoicesonline.org/projects/guide/
+
Handbook for Bloggers and Cyber-Dissidents
http://www.rsf.org/IMG/pdf/handbook_bloggers_cyberdissidents...
But I think if you get a Gmail account with non identifiable information. Then access Gmail through Tor (There's a Tor plugin for Firefox) you've done enough to make it extremely hard to track you down.