I might be one of the first to hit the 48 hour point since I finally got through to Apple Support. No call back. Not a good sign.
I did get a separate call about an email I sent Tim (during the first day when Apple Support was impossible to reach). Hopefully something will come of that.
The Apple Online support person I spoke with on Saturday just called me back. No confirmed order yet, but she reconfirmed my choices and said I should expect an email and/or call later today or tomorrow morning. She also apologized for not getting back to me sooner, but said they've been really busy today.