Black Koi is the newest line available at Wal-Mart Canada with clothing specifically designed to fit women 5'3" or shorter and cut to fit "Asian body types." The price point is between $14.97 and $36.97. No info on the inseam length of their pants, but I would imagine that it's the standard 29" or 30". The line is available at selected Wal-Mart stores in Ontario, BC and Alberta, where there is a significant Asian population. The clothing is also manufactured in Canada.
Update: They sent me a size chart. An XS has a 31" bust, 24" waist and 33" hips. It isn't too much different from a "0P" at Banana Republic (measurements 31 1/2" bust, 24 waist, 33 1/2" hips). The pant inseam is a standard 30"
Here are a couple of pics:



Images courtesy of Wal-Mart Canada.