Sony's own Bluetooth Wireless Keypad. Unfortunately, there's no mention of included rechargeables and Blazepro's keypad communicates with the PS3 via a 2.4GHz USB dongle instead of using the PS3's built-in Bluetooth. Shame, but at least it includes a "Leap-frequency communication solution" and "strongly anti-jamming." Maybe you should just wait for the reviews.
[Via DCEMUUK Forums, thanks Craig]