If you want to use the most elegant, fun and feature rich check in service I highly recommend checking out www.gowalla.com on your iPhone.
The new version allows you to check in to FourSquare, Tumblr and FourSquare--at the same time!
The new version also has a clever little feature that let's you leave notes at locations for other folks. So, if I know you are going to check in at a certain bar, university or airport, I can leave a little message for you! Fun, clever and creative.... that's what I love about the Gowalla team! So happy to be an angel investor in such a great company.
Chris Thompson / About Foursquare: Gowalla makes a bold move and integrates with foursquare...poorly
Lawrence Coburn / The Next Web: Gowalla Keeps Innovating - Invents Private Geo Messaging
Patrick Hussey / LEWIS 360°: Location, Location, Location — Back in November our head …