TomTom still does not open the gps port, but AstroLauncher is a thin app that replaces the start link for TomTom, and does the priming for you.
After installing TomTom and Astro, I can now click on the TomTom Launcher link in my menu, and TomTom comes up with a lock within 30 seconds or so.
You can find the AstroGPSLauncher here:
http://forum.xda-developers.com/atta...1&d=1205288331