David Berlind writes:
If you ask me, the biggie is being able to work with the Web even when we’re not plugged into it or the applications on it that we need. The Web unplugged. We could lose connectivity (like in an airplane). Our application service providers can, have, and will unexpectedly go down. The list of reasons that the Web needs to continue working for us, even when we’re not connected to it is long enough that it’s a key factor to Google’s success.