Apple is planning to add a new combined multitasking and search view to a future version of iOS, according to a new report. Vietnamese-language Tinhte.vn has posted video of an iPhone running what appears to be a post 4.x version of iOS, complete with a redesigned multitasking interface. Instead of the row of app icons that currently slides up from the bottom of the screen when double-pressing the Home button, the version of iOS depicted in the video…