A New Direction in Flavored Whiskey: Pow-Wow Botanical Rye
In the past few years, we've seen a proliferation of flavored whiskies—from cinnamon, to cherry, to honey—and these products vary widely in quality and appeal. The category is seen by many purists as a waste of good whiskey (or an attempt to doctor up bad whiskey for sale). But a recent release from Georgetown Trading Company is poised to shake up the category. More

@arbeck The fact sheet being circulated by Bulleit states that "a select number of Bulleit Bourbon barrels were set aside to age for ten years to see how the already award-winning bourbon would develop," though it's certainly possible that the bottles now seeing wide release are different juice. I'll get back in touch for clarification and post any response I can get.
Also, you're absolutely right regarding the age statement - ages are going to vary from bottle to bottle and since it's labeled as straight bourbon the only legal requirement is that it's older than 4 years. However, Jim Bulleit has been pretty vocal about the approximate age of his bottlings as between 6-8 years. Of course that statement can definitely be taken with a grain of salt (or a dram of whiskey!), so thanks for raising that issue.
http://chicagoist.com/2008/04/10/interview_tom_b.php
Also, with the reopening of Stitzel-Weller it will be interesting to see if Diageo begins to distill Bulleit in-house going forward...