I got this very cool plant from Julie Kennedy, and it has bloomed the very first year.  While its common name is the Giant Leaf Hoya halconensis, I will refer to it by its accession number as it seems considerably different than Hoya halconensis.  You can see below the huge differences in the buds of the two plants. They literally look nothing like one another.

Buds on Regular Hoya halconensis

Buds on (Giant Leaf halconensis) Hoya sp. NS05-032