Islanded in a Stream of Stars is a set up for the final battle between Galactica and Cavil's faction. There isn't much to write about. The Galactica battleship is dying, that much we knew about. I thought Kara Thrace taking the piss in front of Baltar was great. Slapping him in a later scene was even better.
I can still see hope of Boomer's redemption from her behaviour in the last episode. She has shown passion and the ability to care for someone other than her, thus a prove that she is no better a machine than Athena and Caprica Six. While I see no hope of her making out alive by the season's finale (with Athena probably kicking her ass), I do think she will redemn herself by sacrificing against Cavil. Well, at least I do hope.
Tahmoh Penikett was very impressive in this episode. We haven't been seeing a lot of Helo lately, and even in this episode his appearance was minimal. But Tahmoh's performance as a heartbroken Helo was just sublime. Finally Anders getting plugged into the Galactica like a hybrid is likely a plot device to have him jump the Galactica into Cavil's homeworld.
Anyway, two more episodes folks. Just two more. Try to savour the moment. I can now imagine how fans of Lost are feeling at the moment.