Filter duplicates in feeds

Hello,

Discussed a little in the email.

Is it possible to script something to automate the Product Mapping ?
For instance Apple Ipod Nano 80gig
there are also companies that say Apple ipod nano 80 gig

There is a lot similar, but just one space. Is it possible to give a range and after that it will automatically
put the other products in the Product mapping.

Or maybe it is just a search thing, the search engine could compare until a certain amounts of words and decide it is the same product.

Regards,

Joep