>> "We'll be down to our last tens of thousands or hundreds of thousands of web addresses by the end of next year,"
I don't buy it. There's millions of unused IP addresses, mostly massive blocks that were allocated to big companies early on. If IPv4 addresses truly become scarce, these big companies will simply start selling some off.
Not saying it's a bad idea to switch over, but it's not something most people need worry about for a few years IMHO.
We've been hearing this for years now. It's like when I was at school they told us we'd run out of oil in 2000 or something.