I noticed something that may have been a mistake or mean something. Future Ted tells the kids "and that's how Robin met your mother." Wasn't she referred to (by Future Ted when he was talking to the kids) as "Aunt Robin"?
When Lily met the Mother at the beginning of this season, did Future Ted say: "And that's how your Aunt Lily met your mother?" Because if he did, than 005
is correct and it wasn't a slip on the part of the writers.