This dessert is extremely easy to make, and will wow family and friends; it's my new "company's coming over" dessert. I served this to some very stuffed dinner guests before xmas, who claimed to have no room for dessert, yet when this was presented it was gobbled down completely. This mousse is very light and is an excellent choice after a heavy meal. If you want a lemon mousse, rather than lemon-lime, just use all lemon juice instead of the combination. Thanks go out to a Martha Stewart magazine for this gem. Prep time includes minimum chilling time.