It is sad to see that the Palm OS will be discontinued after the Centro hits end-of-life. But, that was the announcement from Palm CEO Ed Colligan today. Looks like Palm will be putting all its efforts into the Pre.
I learned how to implement GTD on a Palm III, and still have a Palm TX laying around the house. To me, it was the best OS for implementing GTD.
Oh well, all things change. Just a matter of time.