I found something today that I thought I'd share with you all here as I'm sure more than one of you might find it useful to integrate into your robot projects.

Basically, I guy built a replacement circuit board for the PS3 DualShock controller that uses a zigbee radio instead of Bluetooth, giving it nearly a mile range.

You could connect it to your EZ-Robot control PC, or possibly direct the the EZ-B board using a zigbee receiver.

Check it out at the link. PS3 RC