The Need for Notifications
Back in the day, cell phones did one thing — make calls. Since they were so simple, the only time they needed to alert their owners was with a ringtone.
Obviously, phones do a few more things these days. They can send and receive emails, SMS and MMS messages, surf the Internet, give turn-by-turn directions and much, much more. One of the core problems with smart phones is how to handle all of this incoming information and present it to the user in bite-sized chunks.