As far as I know, there is still only 2 real IMAX screens in the DFW area, the ~50' x ~70' screens and they've both converted to digital. I'm not a fan of the smaller IMAX screens being rolled out, you lose out visually and they charge a premium.
Will go watch this sometime this week during the early bird showtimes.
Generally speaking, I only watch 3D movies if they were shot in 3D. I'm not a fan of the post production 3D movies.