Interesting points, and although orthogonal to the analysis in "Do ATM-based Internet Exchange Points Make Sense Anymore?", I am including these in the appendix to show these alternate views of the world. Am I missing any of the major (fact-based) views?
There is this "small" thing that higher speed ATM interfaces are not actively being developed. It´s very hard to come by STM16 ATM interface on a router with STM64 being non-existent on both switches and routers. This is not due technological barriers but commercial reality. ATM would be going away faster if DSLAM´s wouldn´t be there increasing the traffic, but because of the extensive investments to ADSL gear, it´ll be there in 5, probably 10 years time. Because of the above reason, there is no point in setting up an ATM based exchange today. The first one here which was built 1996 is being retired by the end of year, and the other probably sometime next year. Pete