This is a design for an open-source prototyping shield for Arduino Uno / Mega / Duemilanove. It has tons of cool features, to make prototyping on your Arduino easy.

Features:

• Reset button up top
• ICSP header
• Lots of GND and +5V rails
• DIP prototyping area makes it easy to add more chips
• SOIC prototyping area above USB jack for up to 14-pin SOIC chip, narrow medium or wide package.
• A 'mini' breadboard included
• Extra 6mm button
• Compatible with: Arduino Uno, Mega, Duemilanove, Arduino NG, Arduino Diecimila.
• Tutorial using Proto Shield for LED