The Aigo A215 won't be winning any gadget beauty contests, but it may win a few marathons. The Aigo A215 is a fairly standard 2gb MP3 player that supports DRM-10 and WMAs. You can record voice, which is a nice plus. But the most impressive feature? 50 hour battery life. That's more than 4 times the 12-hour rating on the Shuffle.
Sure, 50 claimed hours might really mean 30 or 40 actual hours, but both alternatives are still amazing, pants-wetting numbers. Plus, the other advantage to better battery life is less overall recharging and thereby longer battery lifespan. Apple, start your reverse-engineering now.