This is a great concept from Vernier. I have loved using the LoggerPro video analysis with my class for years. The only issue I have with the software is that targeting and clicking with a second finger is a bit odd since you cant see your targeted object since your finger covers it. It might be nice if a button was added to select the target after you already know youve got it in the crosshairs. 4/5
Kenneth Magno about Vernier Video Physics