Got my two Terralux Ministar 2 drop-ins a few days ago. Easy to install. At first, I was a bit disappointed in output---more than a Gerber Trio but less than a SL JR Lux. Then, began to like more and more as I used one over the weekend: nice, small MiniMag form factor, decent amt. of useable light for lighting up the trail and various chores around the house, easy twist-on operation (much faster than the JR's thumb operation). Just plain handy.
Ended up putting 2 lithiums in one to replace my Ultra G as my emergency light in the car, and the other will continue on as a general purpose light for house, trail, etc.
If they really end up getting 5-7 hours of regulated output, that may ice the cake.