Even when crews become familiar with the revised procedures I'll bet that there will be an awful lot of missed items with the new Boeing policy. It may be touted by Boeing as a Good Thing but the concept will reveal there are significant hidden disadvantages. Arming the autothrottle system after start is not only unnecessary but has the potential for disaster if someone accidently touches the TOGA buttons. Why do you think Boeing left the AT Arm until approaching the runway in the first place?