That was the major point of the major study done by then DoTaRS and others years ago, that GPS developments -- WITHOUT SBAS/WAAS --- was going to give augmented levels of accuracy --- WITHOUT the augumentation, for stationary or slow moving receivers, and "slow moving" was put at less than 50km/hour at the time.
Disingenuous again , "was going to give" says it all.
WAAS/SBAS gives us that accuracy right $#@%ing NOW! Without waiting for some peculiar Australian solution. Without waiting for the next generation of gadgets that "might' get built.
Do you not understand the concept of time to market? Do you not understand that WAAS/ SBAS is a world industry standard right NOW!
I am sick of the marketers who promise a cheaper and better solution RSN (real soon now!). We need to adopt world standards for positioning NOW!
To put that another way, all your promised solutions are marketed as "almost as good as WAAS/SBAS". SBAS is the gold standard. Adopt it NOW!