There is a Pueblo Software, according to google, at pueblo-systems.com. However, their site doesn't come up. The cached copy shows that they were working on two software packages, one for a restaurant's take-out business and the other for estimating print jobs. Neither is likely to be confused with us, if the company exists anymore at all. I didn't see anything else in the top hits which would be at all likely to be confusing to anyone.
So, Pueblo still gets my vote.