9. HTML5 Rules For Mobile Apps
HTML5 will become the standard for developing mobile applications, largely eliminating the question of whether it's better to build native applications for specific devices or develop for Web browser standards.
A corollary to this prediction is that development of mobile apps is quickly becoming the primary platform for personal applications, rather than an afterthought or follow-on to development of desktop apps. That means HTML5 will be a big deal -- a very big deal.
One downside: While HTML5 has built-in security capabilities, its very newness and complexity mean that web developers will make mistakes and leave security holes that hackers will be quick to exploit. Great ready for a lot of HTML5 security horror stories in 2012.