iPhone 4S users will now be able to search for more than 35,000 appliances and consumer electronics products available in Best Buy using Siri – Apple’s voice activated personal assistant feature.

Wolfram Alpha – one of the third-party services that is integrated with Siri made an announcement of the feature in a blog post.

Just in time for the holidays, we’re introducing a new functionality that provides consumers with a unique approach to shopping. By leveraging data from Best Buy’s public APIs, Wolfram|Alpha users will now be able to browse more than 35,000 appliances and consumer electronics products. Wolfram|Alpha’s intuitive natural-language interface helps you hone in on the precise products you need, while its powerful data visualization capabilities give you an innovative overview of any shopping category.

So iPhone 4S users can now say “Wolfram, tablet computers”, “Wolfram, LG washing machines” or “Wolfram iPhone 4S” to get comprehensive shopping results from Best Buy.

Combining our natural-language interface with data from Best Buy’s public APIs also allows users to do more intuitive searches. Renovating your kitchen and need a dishwasher that fits specific dimensions? Enter “dishwashers narrower than 25 inches” into Wolfram|Alpha to get a list of dishwashers that meet your needs. Building a new entertainment center and need to find a narrow Blu-Ray player within a specific budget? Try asking Wolfram|Alpha for the “narrowest Blu-Ray player under $100.” For bargain-hunting photographers out there, it is even possible to ask Wolfram|Alpha to find “the lightest digital camera under $100 with a pixel resolution greater than 12MP.”

Give it a try and let us know how it goes in the comments.

[Wolfram Alpha’s blog via TUAW]