I would have waited except for the fact that future firmware updates will be with the upgrade in mind. Smyth Research has said that they will not be writing two versions of firmware code, and they have gone on further to state that some features in the future may not work with the old units.
The shipping weight is 5 kg, with a “dimensional weight” of 7 kg. A calculation made from measurements of package length, width and depth gives you a number that UPS uses, in conjunction with the actual weight, to arrive at the shipping charge. Distance shipped obviously is also the other major factor in the amount charged.
For my fellow US residents who do not routinely use the metric system, 2.2 pounds equals 1 kg.