I love 12Blocks, and have found it very easy to get projects started. I have always had a hard time learning new programming languages, but graphical programming with tools like 12Blocks, LabView and similar environments makes it easier for me to see what is going on in the program.
I have not used Viewport yet, but will purchase it as soon as feel a little more comfortable with Propeller hardware and Spin Language.
It appears Parallax will soon have a Propeller 2 chip available. Do you plan on selling a version of 12Blocks and ViewPort with support for this device?