I'm not sure that's a long winded way of saying "yes", or a complete evasion of the question.
Great. So, if I want stable network connections during a card swap, I have to pay for 'em? And be within a cellular reception area, even if I have a perfectly useful wifi network?
Assuming that swapping your wifi+storage card (with or without also using the HSPA module) doesn't cause your IP address to change, in which case you WONT be able to pick up the SSH session.
I'm not inflating the situation. I'm making plain cases for why it would be a problem for me, depending on what they're really doing (the details about the SDIO and SD card capabilities haven't been made clear by them).
So, in order for this to work, I have to use external storage, and/or do all of my real work on a remote machine? I mean, I do use SSH+VNC a bit, but that doesn't mean that I don't ever do things locally.