it is not just maintenance that shut the network down. The related question will be updated with the latest information
How long your PS3 will last depends on how well you treat it. If you treat it well and take very good care of it then it might last quite a few years. If you treat is badly and bang it around there is no telling how long it's lifetime will be.
8
it depends on how fast both ps3's are
It will take about 3 to 5 days
it takes about 6 hours
couple hours
It should not take long, if you are having trouble see related questions answer
Weeks to months.
about 10-20 seconds.
FOREVER on ps3 jk about 2 hours i think
The same as 8 GB and it depends on the time and your connection
30 minutes apparently, most of them are faulty anyway.