Garmin 430 and upgrade schedule

In addition to Garmin's recent delay of the WAAS upgrade to the
430/530 line, they've also required that we sign up for the
upgrade by November of this year to get the previously announced
$1500 price for the upgrade. This is presented at:

http://www.garmin.com/aviation/430_530_waas_update.html

But in my discussions with Garmin from a while back, about which
I posted in:

http://groups-beta.google.com/group/...e?dmode=source

I learned that full use of the GDL-69 is expected after the WAAS
uprade. I gathered that this was because the current 430/530 hardware
cannot handle the all of the 69's data for performance reasons, but I
didn't bother to confirm this.

So...does anyone know of the schedule for the 430/530's support for all
of the GDL-69's functionality? I presume that it too has been delayed,
but...

I'm also curious: (Uncertified) terrain support has been released for
the 430, yes?

The signup referred to in the Garmin press release appears to be no
serious commitment. Is there any reason to not sign up for it? Does
the signup commit one to a particular avionics dealer?

Thanks...
- Andrew