If you haven't re-watched Silence In The Library/Forest of the Dead since catching up, DO IT.

I just rewatched those episodes for the first time. There are so many mindfucks after what we know of River Song in our current point in the story line.

• At some point their arguing is referred to as spoiler
• River Song's Sonic Screwdriver was very similar (not exactly) to 11's screwdriver. She mentioned it had a red function, and it was glowing blue, and 11's screwdriver glows green. This is an obvious nod to the different wavelengths/frequencies of the 3 main light colors Red, Green, and Blue. (With in theory Red being the weakest light and Blue being the strongest, I don't know why it would be adding "weaker" colors as it upgrades).
• She mentions several events like "did we do this yet? how about this?" and says how his face is different from the last FEW times she has seen him. She obviously didn't konw that Tennant-Doctor was before Smith-Doctor, but it does mean she knows whoever 12-Doctor is (I don't say 13 because if he is on his last regeneration I think she would know, unless of course his dying words as the 13th were why he gave her the screwdriver and told her his name).
• In the end she is "saved" in the library. I don't think this episode will be the end of her timeline. spoiler

Any thoughts?