The next generation of smartcard-enabled gates could have vertically mounted readers on both sides of the ingress as well as the top surface. This would allow passengers with a smartcard in their pocket to simply bump against the side rather than having to get it out and wave it around. Advantages could include faster passenger processing and, through elimination of the need to rummage in pockets and bags, reduced loss of passenger valuables. Disadvantages might include increased fixed, maintenance and out-of-order costs. The readers would have to be approximately 12-18 inches long to accommodate the pocket positions of most passengers. Thoughts welcome!