Gallery: Apple adds multitasking to iPhone 4.0 Summary: Steve Jobs announces new features to iPhone 4.0 - the biggest is multitasking for the iPhone, iPod and iPad. By Andy Smith | April 8, 2010 -- 15:00 GMT (08:00 PDT) Previous | Next Image 22 of 29 Jobs says the average user is spending 30 minutes a day using apps. That's 10 ads per device each day.He says he wants to get 1 billion ad impressions per day by the end of the year.Photo credit: James Martin Topics: iPhone, Apple, Hardware, Mobility, Smartphones Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.