[kalleboo]

Lots of phones did this before (for instance Sony Ericsson's dumbphone line would multitask J2ME apps, even during calls).

What makes this patent valid is they took what existed before, stuck a "BUT THIS TIME ON TOUCHSCREEN PHONES" at the end, and boom we have a new patent. I don't understand how patents like these this count as novel and valid.

edit: thinking more about this (but without checking the original patent) this must cover the "call in progress" bar at the top of the screen. I guess that could be seen as a valid innovation, even though IMHO it's a bit too trivial.