wing woo,
Android is better on one hand but much worse on the other. The native Android Bluetooth service will discover BLE devices. However, there's no API from Google (as of JB release) for BLE development. You'll have to rely on BLE stacks from either Motorola (which will only run on Motorola devices) or Broadcom (which runs only on devices with Broadcom Bluetooth chipset). We couldn't make the Motorola stack work with our app (their documentation says it supposed to work with Motorola's accessories) and we're about to give the Broadcom stack a try (once we get the Galaxy SIII).
--Tomer