According to a new report from Pew Internet & American Life Project, people are doing more than just placing calls on their mobile phones. But of course, we knew that. Most of us are snap-happy, photo-taking mobile users as well as texting fiends, after all. And when we’re not taking pics or LOL’ing via SMS, we’re hitting up the Internet. What’s noteworthy is that last activity, though — the Internet usage on phones has jumped the halfway mark, reaching 56 percent, says Pew. In other words, more than half of all the mobile phone users in the United States hit the Internet on their handsets.

That’s a huge chunk of people. There are about 250 million adults in the U.S., and 85 percent of them own a cell phone. That’s something like 212 million users. It’s even more if you count the teen crowd — there are approximately 26 million American teenagers, and 75 percent are rocking a mobile phone. If you do the math, that’s about 230 million. (The numbers go up even further than that if you count the under-13 demographic.)

So here’s a slice of modern life: In this phone-obsessed culture, the top 8 activities of American mobile phone owners today are as follows:

Cell phone activities

Our usage has increased in every single category over the last few years.

Now, this study didn’t break out the smartphone owners from the featurephone users, though in the past Pew has stated that 53 percent of mobile phone users are packing smartphones. The numbers vary slightly depending on who you go to: Nielsen pegs it as 55 percent, and comScore puts it at 51 percent. In any case, it doesn’t take a scientific researcher to see that the higher number of mobile Internet users seems to be on par with smartphone adoption. But if the activity statistics above focused only on smartphone users, you can bet that the numbers would be way, way up.

Post-PC era indeed. Since most people just use their desktops and laptops for basic functions — like accessing the Internet, looking for health info and checking bank accounts — these numbers should be a wake-up call to computer manufacturers. And with tablet sales on fire and mobile phones driving holiday sales, it looks like PC makers may have more to fear than ever.

Aside from performing advanced functions or tasks, like Photoshopping, editing video or developing applications, would you forego a computer strictly for your phone or tablet? Let us know in the comments.

[Via MarketingLand, source Pew Internet & American Life Project]