I was looking for some expertise on why my created Ad-hoc network would show up visible on some devices but others it will not. For instance I have a netbook and a laptop that will show it but an iPhone/iPad will not, a USB adapter (AE2500) will not show it either.

After I connect to the network with the netbook the other devices will now see it. Most likely because the netbook will now send out beacons after connecting.