Oh so much to say, and a synopsis already written.
I really enjoyed the first part of the episode. I was glad that Daniel and Sam got on the team because of Jack, and also liked the Gateship thing (not only becuase it was McKay's thing in Atlantis, and it was a good reminder about why they were doing all of this in the first place, but because Daniel agreed with him about the name!)
It was nice to finally see the Teal'c part of the tape, I was getting curious! The way he spoke was very verbal for him and it was nice to hear him so happy about what had happened over the last 8 years - it showed us that Teal'c had finally achieved what he had defected for, and if this had been the end, I would have been happy in this knowledge.
I liked that they had to kill alternate Daniel because he was a Goa'uld, it was a nice twist, though I guessed something like that was coming since it was unlikely they would do a Replicarter thing and have two Daniel's in one shot, but hey. It was also a little annoying that they had to kill off Kawalsky (who I thought might be a Lieutenant Colonel at least with another 8 years of service).
Also had to mention Jack's little comment on not liking guns - very true and unfortunately still his reason for leaving the military. I liked Jack in this episode more so than the last one, though I have to say he looked really good, really well rested and with a good haircut (very shallow I know). I thought they would have given him more action though considering he may not be back in the action again. Nice to see he had priorities on the mission!
I also have to say that I thought there would have been a little more action in this part, seeing as though the first part was very lacking in that respect. I'm not attacking it for this reason, but it would have been nice to have seen some of the rebellion, or at least them flying away with the stargate! To have seen a few Jaffa laying down their weapons because they were surrounded and then reverting back to the real timeline was a bit of a let down. I would also have been curious to have seen what happened with the real Daniel and alternate Sg-1 who remained in the past, as it was obvious Sam and Jack were getting it on and what would they have done. Also, in an ick factor, what would have happened if they'd had a kid in the past - wouldn't this have affected the future in some small way that they didn't know about?
And of course I have to mention the Sam/Jack thing in more detail. It was amazing how different she looked without them glasses, and she seemed to get more confident without them. I will admit I snorted when she said that she was more attracted to Daniel, but it was nice when they got together, and it gave some a little hope (though at the same time being annoying for doing this to us when it was an alternate timeline). However, apart from the niggling thought above, the other thing that got me was the sparks that shot out behind them when they kissed - a little too cheesy for me, though that she added on "I can fix that" mid kiss pulled it back.
I also liked that they looped it back to the end of threads, so they cut out the line where she said "There are no fish in this pond are there?" because she'd heard Jack say it on the tape. Though the CG fish was absolutely terrible!
All in all I liked the episode, and it was (as someone already said) a very different SG-1 finale to anything we've had before. The Reckoning gave us the action packed two parter that we've all come to know and love and got rid of many of the enemies that we'd become tired of. Moebius allowed us think about the last 8 years - about Teal'c's battle, about all the people they've helped and how far they've come. As the episode I progressed I couldn't help but wonder what happened to Abydos, about various other planets, the Tok'ra, the Asguard - so many would have been affected by Earth and the Stargate. Ohh look at me getting all philosophical. Its the kind of episode that made you wonder what's going to come next and with so many changes in season 9 I honestly can't wait (though a definitive answer to the Sam/Jack question i think would have been appreciated!)
I'm going to give this 8/10 for nostalgia factor, Sam/Jack and the fact that it left me with a smile on my face, a little more action would have got a 10.