Why it has the potential to be a killer application:
People are close to having an addiction when it comes to instant messaging. Nowadays, texting is the most common form of communicating. Why is that so? Well to be honest: it's convenient, messages can be relayed instantly and stored for future references or until it is deleted. Considering Brunei's high charges on SMS rates, this will be a hit for locals.
Moreover, WhatsApp has a lot of impressive features to offer its' users. Just to name a couple of such features would be:
- Having the application means you can send countless of messages - everything is free of charge, so there's no monthly cost. WhatsApp uses 3G, EDGE and Wi-Fi
- International SMS-ing is possible; it's free so there's no need to worry over international SMS costs.
- Connected 24/7! There's no need to log in or out so it saves the hassle of signing in and out and remembering pin numbers or usernames.
- With the Push Notification functionality at it's disposal - users are able to get their messages even when they aren't running the application at that exact moment.
- Conveniently, WhatsApp automatically adds other users who also have WhatsApp from your Address book to the contact list of your WhatsApp messenger.
- Interestingly enough, it also provides an accurate time stamp - which fixes the mystery of not knowing when the IMs were sent despite which country you're from.
- Status updates is also available which serves as a purpose to keep people updated with the current news about your life - it is similar to other network applications such as twitter.

To say the least, these features have the potential to appeal to a lot of smartphone users. In the future, WhatsApp will soon be available for two other popular mobile platforms: Android and Nokia Symbian.
This notable fact; that more and more mobile platform is embracing WhatsApp messenger application for their users shows that in the future more and more people would have access to the usage of this application - giving it a high probability of being a big hit amongst many people all around the world.
All in all, it's evident that there are many benefits for people who use this application. It both provides as a means of communication and networking in a much more simpler sense.
Despite it's many advantages, it should be duly noted that there are flaws in this application. Still, there are some ways to overcome these problems:
- Only smartphone users have this application available to them, so there might be a form of unfairness to those who can't afford a smartphone.
- The fact that the application automatically adds other WhatsApp users from your Address book without the choice not to do so might create problems for those who wishes to have their privacy
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