As a lover of the Twin Cities, this is definitely a saddening read. Minnesota is a pretty great place to work in tech as an employee, but it's not currently the thriving area of tech innovation I'd love to see it become. It's too bad, too, since in theory the Twin Cities has a lot going for it for startups: lower cost of living, highly educated workforce, and theres nothing like a long, bitter, winter to justify long periods of time spent indoors hacking ;).
Obviously there's no simple button-press solution for a city to become a startup capitol, or else every city would have pressed that button by now, but I do think that the focus on Corporate Tax rates is particularly wrongheaded. Just about every survey of "Business-Friendly Tax Rates" tends to put CA, MA, and NY near the bottom, surely a higher tax rate can't be that discouraging to potential startups?