After several months of uncertainty, at last TODAY I received my FEDEX package to ship my XOOM tablet to its motherland for a 4G upgrade. I had previously prepared my XOOM for this event by backing up my data and encrypting the device for shipping the same to Motorola; therefore, I was able to ship it back to them TODAY itself with the hope that the 6 business days they say is worst case but maybe we get our upgraded device much earlier. Anyway, I'll keep this forum posted once I am in receipt of my device.
Good Luck to the rest of patient but passionate XOOM owners.