Wireless memory card company Eye-Fi has been active at Macworld with Monday's announcement of an iPhone app that sends pictures directly from the phone to a PC or Web site. You can send photos to several photo-sharing or social-networking sites.

The app is currently in development and will be a free download from the Apple App Store.

A $79-$129 Eye-Fi wireless card is required to use the service. It's available from retailers such as Apple, Best Buy, and Amazon.com. To receive an email alert when the application is available from the App Store, see here.