i agree with you 110 percent on both of those issues. it just seems that from what we know of Episode II, neither of those issues will really have CONSEQUENCES in Episode II. The consequences seem to be saved for Episode III.
I beleive Mace will have ALOT to do with approving the clone army to "save" the republic. Although I beleive its possible it COULD POSSIBLY refer to his belief that anakin IS the chosen one, and sending Anakin off on his own when hes not ready, against obi-wans wishes. But it probably just refers to Mace's full support for the clones' use. Although, when you think about it, Sidious already had the clones ready. From what we know, Mace doesnt really seem to be the one that goes "too far." I will pig-headedly argue with anyone until the bitter end that Mace is a traitor, but I think more is involved than meets the eye right now. What does Mace go "too far" in. Will it be in Episode II, or did Lucasfilm just create that teaser to look cool, and none of it will really happen until Episode III?
Which brings me to Obi-wan's statement. I think it will have alot to do with Anakins statement from the trailer about Obi-wan holding him back. Will we see any REAL consequences of Anakins failure in Episode II? I doubt it. GL has repeatedly said Anakin will be mostly good at the end of AOTC. Then again, would GL lie to us in order to surprise us? Right now, AOTC seems to end too happy. Sure, we have Yodas statement that the Clone Wars have begun, and the Conversation b/w Sidious and Dooku, but WHAT IF GL surprises us BIGTIME. What if Sidious turns Anakin in Episode II!!!! While I dont beleive this myself, I am curious as to it as a possiblitiy. If we remember, Luke was first offered a taste of the dark side by Vader in the second star wars movie. What if something comparable happens in this one. And AOTC ends with us NOT KNOWING anakins choice. It is something to ponder.