a built-in FM radio (seriously, why can't all phones have this)
Because the North American carriers love to cap data, and they're vertically integrated, so they sell you services (like digital radio) that consume bandwidth and double-charge you!!!
My Xperia Arc had an FM radio and I used it all them time. When I switched to an S3 that was one of the things I missed the most - other region's S3's have an FM radio!!!