Can a Raspberry Pi power 1 USB Asic Miner? Looking at other setups it seems everyone is running with multiple USB Asic Miners through powered USB Hubs. Can the Raspberry Pi power a single miner through USB? Even using a 2 amp power adapter?
Yes.

I have been running my Pi (B, 512mb) with a 1.5 amp power supply with 1 usb erupter (Sapphire) for over a week with no problems. Directly connected to the Raspberry, no hub.