Very interesting collection of inspirational wisdoms - from the senior entrepreneurs themselves!
I can see a pattern in their advices - that it is most important to actually take action every day, believe in your ideas, build the app quickly, don't waste time and release it out there soon. I guess it's all about timing, discipline, and determination to actually DO IT which separates successful entrepreneurs from the miserable ones.
Not only will it stay for a long time.. it will also evolve over time. That's the reason why Web 2.0 is not going to just 'die'. It will evolve and adapt to the next generation of the web side by side with the emergence of new technologies.