Hey Guys,
Interesting article - just tweeted it. While i wouldnt say i am part of the "lean startup cult" - i must say i really like their stance on Pivoting.
The Flickr example is a great one, smart companies, the truly smart ones you find always had to pivot a few times. It has certainly happened at the company i work for (Grasshopper).
We used to be called GotVMail - we realized that being voicemail focused wasnt the right strategy, and that really we were a communications solution for entrepreneurs. We bit the bullet, as pivoting is always taking one step back to go forward. But its been amazing for our business ever since.
Good luck!