Hobbico has announced the new LiFeSource 200mAh 6.6v 1c Receiver Batteries. These batteries are designed to be the receiver packs in your 1/12 scale (and some 1/10th scale) vehicles where you are running a 1S LiPO to power your car. The batteries are tiny and lightweight, so you could even use them in some small gliders and planes. Look for them to be in hobby shops soon for around $20. I think a lot of people will be trying out the LiFe battery technology this year.