Yep... I'm getting the data from their publically accessible API (designed for doing just what I am doing) at http://www.livedepartureboards.co.uk/ldbws/.

As you'll see in the software, there is no station-station journey planner (the button for it will instead open the web-based one), as I'd have to screen scrape for this, and I know they got pissy with someone doing this for iPhone.