As of 2:18 pm EDT. No other info available.

EDIT:
The error page (aka Haim-On-Fire-Page) now reads:

What’s happening: We’re experiencing some hardware issues, and are working to get them resolved as soon as possible.

Estimated downtime: 2:25PM - 2:50PM EDT

EDIT: Now 3:00PM

EDIT: Up as of 3:10PM, no additional info yet.

EDIT: RevolvingDork posted an official word on this. The cause is still unknown.

RevolvingDork says:
Today Etsy experienced an unexpected outage from roughly 2:25pm EST to 2:50pm EST.

We’re still investigating the specific cause of the issue, and hope to be able to post more information on it soon.

We’ll be putting more preventative measures in place to ensure the same thing doesn’t happen again.

Thank you for your patience as we chase down this anomaly!
Posted at 5:53 pm, May 31 2007 EST

[source]

(edited by StarryDesigns)