Quick Update September 25, 2011:
Colors are starting to show in the Northern half of New Hampshire and the White Mountain region. Neither area is at peak yet, but the colors look good. Nice color can be found in the area of Pondicherry Wildlife Refuge in Jefferson, New Hampshire. The above image is from earlier this week.
The Kancamagus Pass (elevation 2855) along the Kancamagus Scenic Byway has some great color right now, but the lower elevations of the byway are still in the early stages.
You can see some of this year's foliage here.
Happy image making and get those cameras out!