With the launch of Google App Engine, it is quite possible that we are seeing another evolutionary step to the next generation of the web. The tools required to get more context and process around the information on the web is getting closer and closer to the masses who need them. This is not the last step, it is just another step. From what I can tell you still need to be a strong programmer to leverage the new Google App Engine. It really is just providing the "stack" or everything that you need behind the web application. And while it probably won't directly impact a lot of people in the learning world, it will indirectly.
As application tools get easier to create and easier to scale and easier to throw away, even more people will experiment and play around on the web. We created TwoBrains in just a few months, but we still had to pay for the back end. It was really cheap. I think I spent $1700 for two years of hosting and a little more for a domain name. Now the same application (theoretically) could sit on Google App Engine. You just cut $1700 off the cost.
Of course, it won't be perfect, many will complain about this or that, but the end result will be good for people who use the web. Just like many other things it will take some time, but this is a very good thing.