We have just released an update to Data Bridge and Design extender that should address most of the issues reported so far.
In your list we have fixed all of the issues except for #1... I wasn't able to track down what is going on with that particular bug and I didn't want to hold up the update for it.
We will work on issue #1 and hopefully get it addressed soon, but I believe all of the other reported issues have been fixed and issue #1 can be manually updated in the CSS until we get out the next release.