I purchased six of the N810 for work, and in order to access our WiFi, I used a multi-stage process. Flashed to Chinook, installed both VPNC and VPN-gui, installed Bluetooth PAN, installed Skype, and Gizmo. I did this repeatedly on all of the devices, moving sequentially after flashing to installations. I'm new to Linux devices, so I don't know if there would have been an easier way to create an 'image' that can be flashed onto the devices, saving me the trouble of all the software installations? thanks!

Officially not, but it's possible and well described in this forum how to boot from SD card. Distributing the installation would then just be a matter of cloning the memory card.