Galileo is an Intel platform compatible with arduino ; more of that it is an embedded Pentium class platform. With 400MHz and 800mA and 55€ with Ethernet but no video out, I’m not totally sure this platform provides a real new thing in the embedded world.

By the way, it have some interesting advantages :

• Compared to usual arduino platform, you have a really more powerfull system for the price of a small arduino + ethernet shield. Making this board interesting.
• Compared to ARM based board, for a couple of Euro more, you have a full x86 compatible platform (32b) where you can run most of the existing x86 code.

I let you have your own advice, to take a look to the detailed description here and buy it here (actually 9w delay)