I had a chance to play with Postcard pre-launch and...it's kind of amazing. It's a "just enough" product if all you want is a landing page, a way to collect email addresses, and a way to send people communications (marketing updates, newsletters, etc.).

The "defaults" are smart: they'll build you a page based on public info (I think mine was from Twitter and Gravatar), and they focus on a single simple, clean layout. Best of all, it takes only a minute or two more to hook it up to an existing domain (no futzing with DNS) or buy one yourself.

It took me less than 5 minutes to get https://herzigma.com up and running!

Kudos to the team for being super focused and executing to well. This is now my go-to recommendation for professional websites/landing pages.