Another thing that was not in the manual, that really should be in the manual. I powered off the phone before the install, and then powered it on at the last step of attaching the cables, to verify all was connected fine. Then powered off again, closed up the case and powered on again.
BUT the display was clunky and unresponsive, which was strange to me because it was perfectly functional with the shattered glass. I had to power off and on to get it to respond, and even then pressing buttons on the screen was still clunky and unresponsive. Finally I went to troubleshoot the display at Apple (http://support.apple.com/kb/HT1737) where I reset it and then reset all settings. After that the display responded perfectly. I basically followed these steps from the above link:
If iPhone won't turn on, or the display freezes or doesn't respond
See iPhone and iPod touch: Frozen and unresponsive for information on addressing these symptoms.
iPhone OS 2.x and earlier: Press and hold the Home button until the application quits.
iPhone OS 3.x and later: Press and hold the Sleep/Wake button until the red slider appears, then press and hold the Home button until the application quits.
If that doesn't work, turn iPhone off and turn it on again. Press and hold the Sleep/Wake button on top of iPhone for a few seconds until a red slider appears, and then slide the slider. Then press and hold the Sleep/Wake button until the Apple logo appears.
If that doesn't work, reset iPhone. Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears.
If iPhone continues to freeze or not respond after you reset it
Reset iPhone settings. From the Home screen choose Settings > General > Reset > Reset All Settings. All your preferences are reset, but no data or media is deleted.
If that doesn't work, reset iPhone. Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears restore the iPhone software. See Backing up, updating and restoring your iPhone and iPod touch software.
I first tried this with a hairdryer for a good 40 seconds and it did not get hot enough to budge the adhesive. 5 seconds with a heat gun on low and the glass separated easily. Be careful with the heat gun, go slowly and only heat small portions at a time but it works much better than a hairdryer.