Android :: Copilot Live Closing On Itself

I'm using Copilot Live USA on my Droid and quite often when I'm testing it at home, choosing different routing options or making other changes to see what effect they have, the app will just close (sometimes after being unresponsive), leaving me at the home screen. I had a similar problem while using it in the car today - a call came in and after the call was completed, Copilot was closed. In all cases, long-pressing Home and selecting Copilot from the recent apps list, results in the app starting from scratch - displaying the splash screen and so on.

Since Copilot takes up a whopping 33+ MB (effective, according to system panel, plus another 12+ MB shared), my first thought is that Android is killing it to allow some other process to run. This is despite the fact that the Droid is listed on the Copilot web site as a compatible device. Is this a common issue with Copilot on the Droid, and is it less common on phones with more RAM?