On display at Japan's CEATEC tradeshow is a new technology developed by NTT Docomo and NEC that can fully charge a lithium ion battery in 10 minutes.
According to Engadget, the battery currently lives in an external pack, as opposed to the phone itself, but when empty, its 6 amp AC gets to work in a hurry (most smartphone chargers only pull ~0.5 amps. Few other details, such as full specs or availability, are scant. But seriously, why does Japan always get the cool shit first? [Engadget]