The nano is rock solid!

Flash memory has a many advantages on hard drives: less power consuming, very compact and much more robust.
Ars Technica decided to test the nano's solidity by badly stressing it. They sat on it, dropped it from various height (up to 2.5m), drove over it... The screen finally broke down but the nano continued to play music without any problem!
They managed to kill it by throwing it as high as they could (about 12m) and let it fall down. They opened the iPod to evaluate the (relatively limited) damage.
We then learned something more from the disassembling of this Ipod nano 2Gb. Unlike the 4Gb, the flash memory is directly welded on the mother board and not on a daughter board. This must be checked in the future; Apple or its subcontractor might have modify some things during production.