I haven't gotten my hands on any lime basil yet, but is it much like lemon basil? I've made a very nice lemon basil pecan pesto in the past. I bet a lime basil pistachio pesto would be good.

Maybe in Thai food, substituting for real lime leaves and lime peel? Or for iced tea? Give an extra kick to limeade? I've never grown this myself, but it sounds good.

I put it in salad w/ a good lemon & oil dressing. The lemonade sounds good; I'll have to try that.