Mplayit, a Facebook-based mobile app store, just released some interesting new data about people's willingness to pay for mobile apps. According to Mplayit's report, about one-third of users across all the major mobile platforms (iPhone, Android, BlackBerry) are interested in paid apps. iPhone users are the most willing to pay for some of their apps (57%), followed by BlackBerry users (33%). Android users are the least likely to be interested in paid apps (16%).

While only a third of BlackBerry users are willing to pay for apps, it's worth noting that, with a median price of $5.99, they are willing to pay the most for their apps. iPhone users only want to pay around $1.99 and the average Android user is willing to pay up to $2.72. It's important to keep in mind, though, that these are just average prices and people's willingness to pay definitely depends on the quality of the applications.

As we noted earlier this month, the average price for iPhone apps continues to fall, but the average price for the most popular iPhone apps is around $2.43 in the U.S. - which - judging from Mplayit's data - indicates that most users would like to pay less than $2 for their apps, but are more than willing to pay extra for the best and most popular apps.

Bonus: Percentage of Games in the Top App Stores