NetClipboard is a clipboard sharing and photos/movies sharing app.

Clipboard data or photo album photos/movies can be transmitted over WiFi or 3G to multiple iDevices, Macs and Windows simultaneously.

It is distributed in Master and Slave modes. Masters can send data to everyone, Slaves can send data to Masters.
Slave versions are free and available for Windows, Mac OS X and iOS.

Suppose you are on a family reunion taking pictures with your iPhone. You then want to share your pictures with relatives that have different devices (Windows Netbook, MacBook Airs, iPads, iPods...). If you have NetClipboard Master in your iPhone, just tell your relatives to download and install the free version for their devices and you can transmit your photos to all of them.

App home page link: NetClipboard

AppStore link: NetClipboard