To those of you having problems updating the AirPad, here is what worked for me. I've started with the instructions earlier in this thread and added some clarifications. Thanks to those who tried to help.
The tools included below will completely reflash your Airpad. Do this with a plugged in, fully charged Airpad. I haven't experimented with what happens when this process fails and nor should you! Flashing the Airpad with a new ROM will erase all data and installed programs on your Airpad! After rebooting you will be able to log into the Android Market and redownload your purchased applications.
http://dl.dropbox.com/u/36442225/AirpadUpdater.ziphttp://dl.dropbox.com/u/36442225/110902_001_airpad.imghttp://dl.dropbox.com/u/36442225/110920_002_airpad_rooted.imgTo update your ROM:
1. Download AirpadUpdater.zip and 110920_002_airpad_rooted.img. Unzip AirpadUpdater.zip. It contains driver files and a flash program.
2. Power off your tablet. Off, not sleeping.
3. Hold down the ESC button (the Back button on the Airpad) and then connect the USB cable from your tablet to your computer. Release the ESC button after the USB cable is connected.
4. If you have not already installed the Rockchip driver file, install the appropriate Windows driver from AirpadUpdater.zip.
If the driver did not install upon connecting the AirPad, press the Windows key. Right click Computer. Choose Properties. Click Device Manager. Find the RK29 device. It will probably be an Other or Unknown device. Right click the RK29 device and choose Update Driver. Choose Browse and navigate to the appropriate driver and install it.
In device manager, if you choose 'View by Connection' and navigate through the list to find USB devices, the tablet needs to appear as 'RK29 Device'.
5. Run RKBatchTool.exe. If you have installed the RK29 driver and successfully connected the Airpad in flash mode then the first box in the connected devices lists will appear green.
6. Select the “…” button in the top right hand corner of the window and choose 110920_002_airpad_rooted.img. You may have to navigate to the image files or copy them to the same directory as the RKBatchTool program.
7. Press Upgrade
8. It will take several minutes for the ROM to flash, for the Airpad to reboot and reinitialize, and then for the Airpad to reboot once more. Do not interrupt this process.
Good luck