If I may, having the updates "for backers only" on the KS page ain't a grand idea. People who browse KS like to read those updates, to see where things are at.
Only the first update was for backers only, and that was because it had Top Secret information on how to vote for which design you like best, which is...well, for backers only! Subsequent updates probably will not be blocked and will be open to all...unless they contain more Top Secret stuff (and then I promise it'll be worth it to pledge and have a look)!
Also, I was wondering if the project had any stretch rewards planned. I don't want to sound greedy, but hey, this is Kickstarter!
We do have some fun ideas for stretch goals that will be revealed as we get a bit further along in the campaign. Interesting things abound!
And one last thing: do Canadian residents have to pay full international shipping?
I don't have answer to this one, but I will let you know ASAP!