Contrary to what I was told today by a T-mobile rep some pre-orders actually arrived on doorsteps today. These may just be a lucky few who have slipped through the cracks, or more likely T-mobile reps don't know what they are talking about. I actually ordered mine late last night. I called in after learning the shipment emails were going out to see what was going on with my order. I was told that the shipment notifications were sent out in error and that NOONE would receive their phones prior to April 10th.
The pictures above would appear to disprove that "fact". Pre-orders that were made on Friday with overnight shipping should arrive by Monday. Those with standard shipping are set to arrive between Tuesday and Friday. Have any of you received your S6 from T-mo yet?