I have just acquired a new BG-E9 today, which is a new battery grip designed for the EOS 60D. The EOS 60D uses the LP-E6 battery (instead of Bp-511A), , first introduced for the EOS 5D Mark II and subsequently used in the EOS 7D. Therefore, it cannot use the old BG-E2N grip, and required the new BG-E9.
The BG-E9 is different from the BG-E2N in a few ways other than using different kind of battery. The BG-E9 loads batteries with a battery tray from the side, unlike the Bg-E2N, which load batteries from the back.
A good news for xxD user upgrading to the 60D is that, Canon has finally put an AF-ON button on the battery grip. The power switch for the battery grip is now placed at the back of the grip instead of the the side close to the shutter release as in previous Canon battery grips.
You can also see from the photos below that the BG-E9 is made in Taiwan instead of Japan, just like the BG-E7 grip for the EOS 7D.