The PlayStation Network is typically reliable and solid, but there appears to be an ongoing issue that continues to plague a great many users.
A growing thread over at the official PlayStation forums is dedicated to users who no longer receive e-mails from the PSN (besides Store purchase confirmation messages). Everyone should get update e-mails on a consistent basis but it appears that many people – including GAP members – haven't seen any such e-mails in quite a long time. The frustrated users have already approached Jeff Rubenstein at the PlayStation Blog ; he said he'd pass the word along. For our part, we'd be interested to see how many other PSN users have this problem; if you do, feel free to add your voice to the crowd. That list in the forums continues to grow with every passing day and we're hoping Sony addresses this issue before too long. They're already looking into a few of the problems caused by firmware update 3.00 so perhaps those tech guys can just add this to their to-do list. Oh, and unsubscribing and signing up again doesn't seem to be a fix-it solution for most people.
So we'll see what transpires in the near future. If you're having the problem described here, speak up.