[citation][nom]Tomfreak[/nom]If the ISP and the google can do it why cant them,unless u are believing that ISP/google doesnt do maintenance at all. You dont need to shut down the entire network 1 time.[/citation]
For ISPs and Google almost 100% uptime is very important so having redundant systems and backups to run during maintenance is something they would have. Sony on the other hand has never said PSN would be 100% uptime and it going down for one day will not hurt anyone (no you are not hurt you are inconvenienced). That is the big difference, an ISP or Google goes down and many companies will lose money, PSN goes down for a day and you lose on playing games for a day, HUGE difference.