in my own opinion, what each of these two features needs most at this point is some real-world experience to work through its design, to find and fix the design bugs and prove that the approach is solid. there is a extensive foundation of video lessons in more than 20 languages. i love the pants, they suit you so well! supplies will be very limited and sold on a first-come, first-served basis. every lake i could see was frozen over except for cherry lake. on the flip side, we're much more likely to buy something we need when we find it instead of shopping around. 