RadioShack gave a jillion of em away---it was actually pretty cool, anything that was barcoded would give up info if the manufacturer included it and take you to their website for more info, you could scan a can of peas and it would give you recipe/nutrition info etc---alot of catalogs carried scannable Cuecat symbols giving more info about a product---a good idea that didnt catch on due to the fact that the software install contained a HEFTY dose of spyware...
----> Here is some info about neutering the Cuecat
http://www.cexx.org/cuecat.htm