You can always gauge the traction of a particular developer technology based on the braggadocio of its practitioners. At OTN, one of our jobs is to ride the wave of that braggadocio, which after all is simply the most obvious byproduct of passion.
The newest example is the just-announced Oracle Application Express Developer Competition 2009, in which the Oracle APEX and OTN teams seek to find the best examples of "sick" Oracle Application Express skills in the land. As contest mastermind David Peake explains, although free Full Conference Passes for Oracle OpenWorld 2009, as well as free copies of Pro Oracle Application Express, are at stake, bragging rights will likely be the most effective motivator.
I'm proud to reveal that I am one of the judges, so you'd better be nice.
Everything you could possibly want to know about criteria, guidelines, entry rules, prizes, and so on can be found here. The deadline, Aug. 24, draws near, so get to work!