Devo - I've been using those for about five years now. Like Aaron said, they're great for campground connections with buggered threads. I even have some gold plated ones that really don't work any better than the regular ones. I use them with this type of mini coax for short (12 ft.) runs, although I have seen them in 25 ft. lengths. It's a real space saver, as the whole setup fits in the palm of your hand.
http://tinyurl.com/rwp6u
I believe I have seen these mini coax cables at Wal-Mart for around $7.