Pretty easy to get as I'm sure B&H or Amazon.ca will get it and ship it, just like they do with the Silicon Dust (HDHR) 3.0 Tuner.

I have the Tablo Dual Lite and it's awesome. The only bad thing about the new box is that it won't stream over the home network, which might kill some sales. If Silicon Dust makes a new version of their 3.0 box with streaming and DVR, they might overtake them.