The N81 marks Nokia’s entry into music-related services similar to that offered by Apple (as in iTunes). Like the N73 and N95, the N81 comes in two editions-Standard and Music. The former has a memory card slot, while the latter has 8 GB of flash memory and no memory slot. The N81 is handsome-rounded edges, black lustrous finish, and you’ll notice the use of contrasting brushed silver on the edges. Build quality is excellent, and though the body has a plastic feel to it, it’s rugged, and should take the rigours of everyday life. The slider mechanism is taut, but we’ve seen better ones on Samsung phones (and lately, the Sony Ericsson W910i). The front facia is dominated bya huge, arklingly-clear 2.4-inch display. The screen equals that on the N95 (which has the best...