The Eye-Fi Memory Card sends photos wirelessly from your camera to the destination of your choice, like a computer or the web. Back in January of '08, the product gained Mac and iPhoto support, and support for MobileMe was added in September '08.
This week, Eye-Fi announced the Eye-Fi 2GB Geo, which is currently exclusive to Apple retail, both online and brick-and-mortar stores. As you've probably guessed, the Geo adds geotagging to the mix. Once snapped and tagged, photos will be sent to a folder on your Mac or directly to iPhoto, all tagged and ready to go. This makes great use of iPhoto '09's Places feature.
It's $60 for a 2GB card, which is cheaper that most of the geotagging add-on hardware we listed a couple months back. If you pick one of these up, let us know how it goes.
Additionally, there's a Eye-Fi app for the iPhone [App Store link] that lets you send photos to your Mac or certain online services direct from your phone.