Most American adults now own smartphones, according to a recent Pew Research Center poll of 2,250 adults.

The Pew survey found that about 56 percent of those polled now own a smartphone. One-third own a feature phone, while less than 10 percent of adults don’t own a cell phone.

People ages 18 to 49 are most likely to own a smartphone, according to the poll, and despite their higher price tag income level doesn’t factor much into the purchase.

Income does play a factor, according to the Pew poll, for older adults as they consider a smartphone more of an “elite” item to own. Smartphones outsold feature phones for the first time in the first quarter of the year, according to the IDC.

“2013 will mark a watershed year for smartphones,” Ramon Llamas, Research Manager for IDC’s Mobile Phones program, told Marketwatch.com. “If you look at the number of vendors who support both feature phones and smartphones, many of them have not only successfully transitioned their product portfolios to highlight smartphones, but smartphones have become their primary value proposition going forward. In some cases, smartphones have accounted for well over 50% of their quarterly shipment volume. Looking ahead, we expect the gulf between smartphones and features phones to grow ever wider.”

Seniors are also driving higher smartphone sales, if at a slower pace, with 18 percent of that group now claiming ownership of that type of cell phone.

The turf war between Android and iOS, meanwhile, continues on as 28 percent of all cell phone owners have the former compared to 25 percent who use the latter. Blackberry and Windows total just five percent of the market.

Globally, Android is also favored though the Yankee Group expects Apple’s iOS to surpass it for the top spot in the coming years. Comscore.com has Apple as the top ranked smartphone maker in the U.S.

Part of the reason for the surge in smartphone sales is their drop in price, from an average of $407 in 2012 to $372 in 2013. They could drop to just over $300 by 2017, according to analysts.

ARM isn’t waiting for the market to change, however, the company plans on changing the market by offering smartphones and tablets in the $200 to $350 range by late 2014 or early 2015, according to IDG News Service via PCWorld.

ARM plans to utilize a new low power Cortex A-12 processor, which is actually more power efficient and faster than the Cortex A-9 being used. ARM and Intel will battle it out for tablet sales, as the latter will reportedly be offering Android tablets in the $200-$400 range later this year.