Yeah, I love messing about with the diary; not just that Ianto keeps one, but that it's very much like the paper diaries I used to keep (full of scraps, randomly laid out). And that Jack reads it, because on the one hand that's a huge invasion of privacy, but on the other Ianto seems almost to expect it, and it's a great way for him to communicate with Jack without actually communicating directly.

I really rather like Alex, as psycho as he is when we meet him, and I'd love to see more of that era. Especially since Jack obviously cares deeply for his teammates and even after finding out Alex killed them, his first concern is to try to get the gun away from him.