Sure, you can do that, but then your content in cyan won't show up in the Livescribe software.
I don't know of any timeouts with the Wi-Fi dongle. It should behave exactly the same on Wi-Fi as it would on ethernet. The only thing I would check is the power supply; it may not have the necessary amperage to maintain power to the Wi-Fi dongle continously.
I have not done any A3 templates nor have I seen them out there.
I have not tested it with the Livescribe 3. Why don't you test it and report back?
Livescribe removed the developer program. There's nothing we can do about it.
Sorry Vicki, I haven't seen any A5 templates around. I think Livescribe sells several A5 books though - it's not a download but at least it's A5.
Unfortunately not, there is no support for the SKY Pen from Livescribe.
You should be able to setup both of them together, I've done it before but do not have instructions for it.
I have no idea as I do not have a Livescribe 3 pen to try with. Why don't you give it a shot and let me know?