Blaine points out that new technology - any new technology - takes a lot longer to go from concept to adoption than you might think. He references this book. Blaine's take on it:

Where am I going with this? I think this applies to computer languages and frameworks. The rest of the industry keeps edging toward Smalltalk and Lisp. The road to Smalltalk was started with C++ (by mimicing OO features) gaining acceptance. Later, it was java (VM, garbage collection) and now, python and ruby (late-binding, dynamic typing, closures, etc). Each jump has taken about ten plus years each. What will the next jump be? I'm hoping it will be toward the image because it's the only piece missing. But, we still have about ten years before critical mass. Are you patient? I think I can be.