Hi! First off I don't know if this has been brought up before, there are 400+ threads in the feature suggestion section, I am not willing, nor do I have the time, to check.
So my idea is something along the lines of a flare or throwable light or maybe even a throwable motion detector. The idea behind this is that no one likes it when your best man goes through a door or into a new area and BAM he is dead. With this useable item you could basically check an area for threats before exposing yourself to them.
Any comments or ideas? Please share your critizism.
-Ed