Blackberry users are suffering with a 3rd day of outage.
Rim have released a statement;
BlackBerry subscribers in the Americas may be experiencing intermittent service delays this [Wednesday] morning. We are working to resolve the situation as quickly as possible and we apologize to our customers for any inconvenience. We will provide a further update as soon as more information is available," the statement said
Unfortinately there isn't much you can do except wait for RIM to fix the issues that have come about over the last few days.
This is not a good time for RIM as Apple launch their competing service iMessage - iPhone4S.
The hook of the Blackberry has always been BBM, now BlackBerry users have another reason to drop their legacy devices. At the press event today, Apple has launched a competing service with iMessage. It’s a new messaging service between iOS users. iMessages will be pushed to all your devices. They’re sent over 3G and Wi-Fi. iMessages can be text, photos, video, location, contacts and just like BlackBerry you can get read receipts. You’ll also be able to see when people are typing and start your conversation on one iOS device and finish it on another.