Yeah, those are cool, and a really good idea. Some great outside-the-box thinking, "let's put blimps everywhere!"

They're a lot larger than I thought after seeing that photo you linked to. I always assumed they were the size of a small car or even smaller.

I think they're also combined with the boomerang shooter detection system, and probably other sensors to give troops as much data as possible (wind speeds for shooting would probably be helpful).

Also, the chrome version (with solar panels on top!) http://www.lockheedmartin.com/us/products/lighter-than-air-v...