The new SiriusXM app for phones and tablets offers an improved home screen, collates favorite stations and shows into a new "Library" and has a streamlined "Now playing" function. (Courtesy images, Graphic by The Desk)

New SiriusXM streaming app debuts today

After more than a year of promotions and much longer in development, SiriusXM has finally debuted the newest iteration of its streaming app for mobile devices.