> Hi, I'm looking for a good wireless detector with perhaps a
> rechargeable battery. All the ones I've seen only tell you whether
> one's around. It doesn't say anything about whether they're open or
> not or how many there are and strength.

I bought a Trendnet TEW-429UB 54Mbps 802.11g Wireless USB 2.0 Adapter
with HotSpot Detector from an eBay seller, and I'm very happy with it
except that it doesn't seem to detect access points that do not
broadcast their SSID.

http://www.trendnet.com/products/TEW-429UB.htm

and

http://www.trendnet.com/hotspot/

Peter