Yes, specifically the McKinney Lofts in Uptown starting in the $400s and also 1505 Elm Street in Downtown starting right under $200K. See the current listings at www.DallasHighRiseLiving.com
There are also some lofts in The Mondrian apartment high rise which is opening April 1st, but they are on the ground floor wings and not part of the actual tower.
There's also an extremely hot condo conversion called 588 Lofts which is gong very fast in the State-Thomas area of Uptown, more of a midrise at 9 stories as I recall. This would be the one to pick up as an investment with very low dues and can be had under $200 a foot.