Here's another one, when Padme goes to Mustafar to confront Anakin, he makes a claim about his new powers saving her, however, there's nothing in the film that seems to suggest to me that he actually HAS new powers, only that his new master promised to help him look into them. The movie makes it sound like Anakin already has these powers, not that he'll be working on getting them, and except for tapping into hate, I don't see how Anakin has anything new at all except a bad attitude and yellow eyes for no obvious reason.
My personal theory on this is that at some point in the writing process Lucas had Palpatine giving some of the knowledge to Anakin before sending him to Moosetoofar, and that not only is this the knowledge he refers to in the film, but considering not 1 but 2 different toys - the Mustafar playset and the Micro Vehicles Tantive IV/Mustafar Playset - seem to have Anakin's fate being a hand sticking out of lava rather than being burned to a crisp because... um... why exactly did Ani burst into flames? I still don't get that. Anyway, it had Anakin's hand sticking out of the lava, and for probably 30 years Lucas has been talking about Anakin going into the lava on the lava planet (see pre-ANH storyline and ROTJ pre-production stuff), so my theory is that in ROTS at some point during production Anakin is able to survive a bath in the lava because he used that partial life-saving knowledge which Palpatine had given him, but it was only partial knowledge so he was badly burned up in the process.
Anyway, so what powers is Anakin talking about to Padme, and could they be a key to a scene where Anakin went into the lava instead of quickly going from heat on his pants to engulfed in flame? For that matter, could this have been the knowledge that kept him from dying when he was burned up in the scene in the film, and if so, when did he get this knowledge?