I think that the "something more" that Derek doesn't know about is either as Duxxy said, that it went on after Derek left OR that the night Derek found them which Addison said was the only time was not the only time and that it had been going on previously.
I love the dymanic between Bailey and McSteamy. It's perfect! Based on rankings, Bailey should be answering to McSteamy. But based on time at the hospital, Bailey would believe in her mind that she deserves more respect from McSteamy. I hope they keep that dymanic going for a while.
I love stone Meredith. Would it really demand too much suspension of reality for them to just make Meredith the permanently stoned surgeon?
I'm not so sure that just because Meredith chose Derek that things are done, and they'll be together. Derek was obviously feeling the guilt of what he's done to Meredith, and feeling unworthy of her last night. I think I'd like to see her losing both men because she didn't have her head on straight.
I also have to defend the issues between Callie and George ... and defend George. I love that they've done this storyline, because I think it's so realisitc. Callie was drawn to George because of his big heart. How does he display that big heart? By taking care of his friends. Yes Izzy and Meredith are somewhat like sisters to George (although he's been attracted to one if not both of them, so I'm not so sure just how sisterly it is). But Callie has no way of really knowing that. I've seen many cases before where a new girlfriend is jealous and uneasy by a guy's best friend being another woman. (I've been the best friend making the new girlfriend uneasy before). No one in such a situation is doing anything wrong. But it is a tricky dynamic to jump into without reservation. There comes a point in a relationship where each person has to put the other above all other relationships. Sometimes, that's a husband taking his wife's side rather than his mothers. Sometimes, it's telling a friend "I'll be there later" in order to be there for your boyfriend. Callie was obviously at the point in their relationship where she was ready to put George above everyone else. George was not there. The big question is, would George have EVER been there?
Oh, and ABC's plan is to make EVERY episode of Grey's available on line each week after it's aired, so that will always ben an option if you miss an episode. They're testing a program where local affiliates get to sell 1 commercial, and they're selling 2 others which must run before you get to watch the show. As long as the local and network sales forces are successful in selling the spots, on-line will be an option for viewing if your satellite goes out, Tivo fails, or happy hour goes too long.