Probably girding the eShop for Steve.
Another major Nintendo maintenance will be going on this evening.
The maintenance will begin at 5:00 p.m. Pacific time (8 p.m. Eastern) and is slated to run for approximately 10 hours (until 3 a.m. Pacific/6 a.m. Eastern). "Certain network services" will be affected.
It isn't clear why the maintenance is taking place at the time it is - it's slated for working hours in Japan, and most maintenance sessions are about 12-24 hours later.
