Today's the day!
Unfortunately, I didn't sign up with Plusnet's trial for IPv6 (not that my home router supports it anyway, I wouldn't have thought) and Enta only seem to give us an IPv4 address here at work, so nothing's changing for me today.
Is anyone else trying out what does and doesn't work on IPv6 today then? As per my Twatter feed, there's one guy who's decided to let the internet treat his cat, by building the
world's first IPv6-enabled cat feeder! (You'll need an IPv6 IP address to use it though.)