Motorola is currently contacting owners of the the Xoom 4G Tablet via email on the exact process to retrofit the tablets with the long-promised LTE module upgrade when purchasing the tablet earlier this year. The email, posted below details how the shipping and order process will work:
Thank you for submitting your Motorola Xoom for the 4G LTE upgrade. You should have recently received a package in the mail with instructions and materials for returning your device for the upgrade. Our records indicate that we have not yet received your Motorola Xoom. If you are still interested in upgrading your Motorola Xoom, this is a friendly reminder to please follow the instructions provided in your upgrade package and ship your device back for the upgrade. If you have already shipped your device back to us, please contact us at 1-800-734-5870 and one of our support specialists will assist you with tracking and completing your order.
Further information confirms that Motorola is shipping prepaid postal materials to Motorola Xoom 4G owners via FedEx with package tracking, though this email was likely sent because the owner missed the original FedEx delivery for the shipping materials. Attempts to contact Motorola at the number provided above confirm that the number is the Motorola 800 number for general customer support, though the office was closed at the time of this report.