Web 2.0 has commonly been described as being in a state of perpetual beta - one might ask When Will We Ever Get there? The answer, of course, is that we are there and we will never get there.
Web 2.0 continues to evolve and expand. Along the way there are developments that lift us to a new level - the iPhone and Touch iPod for example. It appears that these platforms have helped us to pass the barrier to mobile learning (M-Learning or Handheld Learning). Check out this tour of the Colorado Tech online learning portal via an iPhone: http://www.ctuonline.edu/ctumobile/
Multi-User Virtual Environments (MUVE) have also passed a threshold with the advent of Second Life. In Higher Ed in Second Life: Fall 2007 you can glimpse the future of simulations and virtual interactions. And, Second Life, is only one of some three dozen active MUVEs - and speculation is rampant that Google is about to release the Metaverse "My World" - a MUVE / social networking site with avatars roaming Google Earth!
This reminds us of words attributed to Hericlitus, in about 500 B.C.
"the only thing constant is change itself"