1. Platform Compatibility Issue is Dead – Long Live Browser

How many of us still remember the war between Netscape and IE?  Microsoft fought tooth and nail not because it loved Internet, MS just was smart enough to realize the future potential of browser as an application container, a platform that can make any application Windows independent.

If you have been betting on hosted applications as a server side paradigm of choice and browser as a client you are  already on the right side of the equation, if you have been waiting, it’s time you considered that golden move.  If you are a provider,  the hosted application market space just got a whole lot bigger, and its a good news.

2.  Arrival of a Killer Cloud App

Rhyme of “work from any where any time” has been there for some time now.  Things didn’t seem so obvious until the cloud arrived, web became faster and applications & data became detached from PC.

Arrival of free OS to drive the applications & a free Cloud to host them can just be the killer app the cloud computing has been waiting for.

3. Risk of Open source & Cloud Adoption just got Smaller

As an adopter of hosted application and open source paradigm, now you need not answer plethora of business continuity risks that you finally find a big brother in Google supporting your plans.

Nobody ever got fired for hiring IBM and may we add — No body will ever get fired for choosing Google Cloud.

4.   Whats  in it for YOU?

If you are an IT Services provider, it just makes plain future sense to focus on hosted open source application space and particularly on Cloud based applications.

As an adopter of open source, there couldn’t have been a better news.  It means a future that attracts more credible service providers and increasing lower total life cycle cost for your future IT initiatives.

PHP frameworks follow the MVC architecture, which means that the presentation is separated from the database and business layers, resulting is neat, clean and understandable code modules.
You are forced to stick to certain coding rules, ensuring good coding standards, which means that the code is written as it is supposed to be written and you do not run into unreadable code later on.
Most frameworks have built in checks to ensure that urls are clean. This is particularly important when you consider SEO.
Access to service APIs makes expanding connecting to other applications like Facebook and Google Maps very easy
Access to plugins means that many commonly used components need not be developed.
Automatic includes mean that you never have to worry about forgetting to manually include common files ever again.
Validation of forms and error flagging are made easy with built-in objects.
Strictly followed coding standards and code modules makes it easier to reuse code.

You may be tempted to create just one or two controllers, which, if done, defeats one of the purposes of using MVC. So, keep your controllers small and as close to the view as possible.

Although the learning curve can be steep when it comes to understanding frameworks, the effort pays off in the end – applications are a lot easier, and quicker, to develop using frameworks.

Sources: http://joshsharp.com.au/blog/view/why_you_should_be_using_a_framework, http://toys.lerdorf.com/archives/38-The-no-framework-PHP-MVC-framework.html, http://www.workoninternet.com/article_26808.html