I'm in the market for a sketch pad I can draw wire frames on. Ideally either dotted or squared paper, allowing me to scale elements more efficiently and not deal with a time consuming tedium process of manually gridding.
Dan, have you heard of Noteslate? (http://noteslate.com/) Of course it's just a concept at this stage and it might be months and years since we see a working demo, but nevertheless, it would certainly be a sweet little gadget.