User blog comment:Mobo85/Hot off the Presses: "Across the Second Dimension" Debuts August 5/@comment-27247307-20110626205936/@comment-5151799-20110627011541

Isabella and Alt. Isabella? You mean, as in, they met each other, or as in there was a promo comparing the two... or something. Please describe. Because, well, if Isabella actually DOES go into the 2nd Dimension, then all the evidence we've gotten is wrong and... well, I'll need a new pair of pants.

Then again, there's always the possibility they meet during the robot sequence, as that is when Phin, Ferb, Perry, and Candy return to the 1st Dimension to counter Alt. Doof and his robots. However, we've yet to see the 2nd DImension characters during the Robot Riot sequence, so even THAT is questionable...