I actually almost mentioned the Nokia phones - the Lumia 620 with its exchangeable double-shot rounded plastic backs (and near-perfect form factor in hand, with a 3.8" screen) may be the nicest phone I've ever used, as a pure physical object, despite being among the cheapest. Pity about the screen though - and, some might argue, what appeared on it, at least in terms of apps.

This sort of design for joy rather than for prestige, reassurance, solidity, sensation of quality engineering, etc is what you hope for from Nintendo. They do have a pretty decent track record at it, and their most successful designs in that respect are also some of their biggest hits.