From Arno
"2013-03-29

SL will move to a new server this weekend. I will disable editing on Saturday and make the move on Saturday/Sunday. It may be that SL will be unavailable for you for a while, as DNS changes (new IP-address) may take several days to propagate. I'll keep you informed."

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Dave Sigaty
"Short-lived are both the praiser and the praised, and rememberer and the remembered..."
- Marcus Aurelius; Meditations, VIII 21

Just a thought - if you turn the TTL for your DNS records down now it will make the switch a lot faster for folks when you get your new IP address, then you can turn it back up after the move. That's worked well for me in the past