For a vertical mouse, consider the Evoluent VerticalMouse: http://evoluent.com/products/vm4r/ http://evoluent.com/products/vm4r/ Regarding the interviewee's co

For a vertical mouse, consider the Evoluent VerticalMouse: http://evoluent.com/products/vm4r/ http://evoluent.com/products/vm4r/ Regarding the interviewee's comment about portability, my VM and Kinesis Freestyle (http://www.kinesis-ergo.com/shop/freestyle2-for-pc-us/ http://www.kinesis-ergo.com/shop/freestyle2-for-pc-us/) traveled 25,000+ miles on a dozen flights in the past few years. Split keyboards are incredibly portable. Combine with a Crate or Stanton foldable stand to elevate the laptop. For anyone choosing a keyboard, https://news.ycombinator.com/item?id=9605262 https://news.ycombinator.com/item?id=9605262 has more comments.