Thanks for your reply.
However I DID read that thread before posting, I thought it was clear when I wrote "any other method".
But in such thread you answer the user "So, stop trying to connect the Omega over tty if you have it in the power-dock, please ;)".
If you read, I never asked about TTY, I clearly wrote I'm aware that Omega2 mini-dock or power-dock have NOT a USB-to-serial (sorry if I wrote "serial-to-USB", did that mislead you?).
I asked if there is any DIFFERENT method than a serial one; I asked if there is something about Omega2 automatically connect to a "default" open AP, of maybe a way for the Omega2 to become a AP by itself if it doesn't find a TTY and a configured WiFi.
Frank asked about TTY, I asked abuot a wifi (SSH) connection.
If the asnwer is "there is no other way", please state it clearly, would be of help; but I couldn't think there is no other way that buying a $15 dock that I won't use it anymore than the 1st run, so I prefer to ask.
If there is no other way, I think someone should think about it: with a wifi onboard it's just a matter of thinking about it and configure the supplied OpenWRT before shipping.