Dallas has a substantial high-tech background and has an interesting creative class, but there's not much intersection between the two. It also doesn't help much that the business attitudes in Dallas are very traditional and "corporate" (not sure how else to explain it). It's a shame, too, because there are 2-3 decent universities here, and various swarms of talent, but absolutely zero community.
Plano and Richardson probably fare better than most places with respect to interesting new companies and tech startups, but they've got a long way to go. I'd probably bet on Plano, if I had to choose. They've got some cultural outlets, an interesting historic downtown, a handful of technology companies, and it's a nice place to live with decent local governments, and it's nearby UT-Dallas, which is the best technology school in the Dallas Metro area (although not flagship like UT and TAMU).
Plano and Richardson probably fare better than most places with respect to interesting new companies and tech startups, but they've got a long way to go. I'd probably bet on Plano, if I had to choose. They've got some cultural outlets, an interesting historic downtown, a handful of technology companies, and it's a nice place to live with decent local governments, and it's nearby UT-Dallas, which is the best technology school in the Dallas Metro area (although not flagship like UT and TAMU).