Arduino really is a fantastic open-source physical computing platform. It is based on a simple microcontroller board, and a great free development environment (IDE) for writing software for the board. No wonder it gained the hearts of an enormous maker community.
I started playing around with Arduino some months ago and it is really great. One problem I was having though is that you have to stack quite some shields only to have basic functionality (buttons, lcd, comms, ...). No to forget additional power supply, extra breadboard, cabling, ... Can become quite a mess on your desk!
2 months ago I found this Arduino prototyping board. It's called the "Arduino Protoshield" and is made by the Italian company Gtronics.
Personally, I think this is a great solution to explore the world of Arduino, here are some great features:

