The idea is to use the Push Notification Service for that. Whether that's a good solution to the problem or not is up for debate. (It works fine for me for IM;

The idea is to use the Push Notification Service for that. Whether that's a good solution to the problem or not is up for debate. (It works fine for me for IM; I don't know of a service that uses it to notify about Twitter events but there might be one.)