Wireless NAS - does it still exist?

I'm looking for a class of device which may no longer exist. A NAS box with wireless capabilities. I want to place the NAS box into a location that is difficult to cable (hence the wireless) and small (so no converted PC).

I know that wireless will not approach UTP for throughput- this isn't a problem as I am not bothered by transfer speeds.

My requirements:
- Wireless built in (or easily added via a USB adaptor)
- 2 drive bays
- RAID 1
- Ability to spin down disks after inactivity

Does anything like this exist? The closest I have managed to find is the Thecus N299, but apparently getting hold of wireless adaptors that work with the device is very difficult.

Thanks.

I am looking for wireless because running wires to the location isn't going to work- I'd have to run cable across my living room floor and across doorways. I don't want to store the NAS any closer to my router as this will be in my small living room, where noise will be a problem.

I am fine with 11b/g speeds for data access (copying movies, loading word docs or photos). So performance isn't a concern for me.

I don't think that reliability is going to be an issue- I'm not aware of wireless being a big risk for introducing corruption into files (guess I'll look up how SMB works though). If the connection goes down occasionally, that's no big deal to me.