Jonathan Goodish wrote:

Don't know about the WAAS upgrade, but I think it was this month's AOPA
Pilot where the author quoted a Garmin employee as saying that the
processor in the 430/530 was "maxed out" with the current weather
products (NEXRAD/METAR/TAF) and that no more weather capability would be
added to the 430/530 platform.

I saw something like that, I think, but I took it to mean that this is why
any more functionality is pending the WAAS upgrade. That upgrade involves
putting into place more capable hardware (CPU, memory, dunno).

- Andrew