I'm holding out until Web 5.0 RTM RC3. It'll still require a Flash plugin, ironically.
If ajax was Web 2, I feel like decentralization feels apt enough to define Web 3. Like a major upgrade. ^^
Web 1.0 was decentralized (see e.g. the email protocol), Web 2.0 centralized everything, and now Web 3.0 is about decentralization again. I can see how the cycle will go ...
Every cycle should increase the power consumption by 10x.
We've taken that baity bit out of the title above.