Garmin has put out a news release ahead of their Q2 earnings call later today, which included this update on the nuvifone:
"The nuvifone will not be available in fourth quarter as previously announced. While we had hoped to have carrier launches in the fourth quarter, we have found that meeting some of the carrier specific requirements will take longer than anticipated. We remain pleased with carrier interest in the device and are working toward making necessary design changes to meet their requirements. We anticipate launching the product during the first half of 2009."
Sounds like we won't see the nuvifone until at least March of next year, since they weren't confident enough to say the first quarter.