Hey guys, what if the whole ICS update's data is more than my phone's storage left? Do I need to clean up some stuffs to update it or not necessary?

Will our existing apps become compatible with ICS automatically after the update? My phone don't have a data plan or wifi on during the update with kies.

Anyone noticed the bug in music player after the update of ICS?

The album art of every track is the same (default) after I click play while in the list the album art shows differently. The music player keeps loading the album art as I scroll down the track list and it makes this ICS music player somehow laggier than the GB version.