I once considered my wife about as techno-savvy as the lost tribes of the Amazon who get discovered every time we clear another million acres of Brazilian rain forest.

So imagine my surprise when, after getting the storied iPhone, she starts flicking and scrolling through pages upon pages of apps on a device that she holds closer at bedtime than me. (No jealously here, just stating the facts.)

Already a dedicated Black Friday shopper, she’s found nirvana in the new Black Friday iPhone app from TGI.

The app allows you to browse over 8,000 deals from all the major retail store’s Black Friday ads. You can search across all deals and categories. You can save the items you want to buy on Black Friday in a personal shopping list. TGI Black Friday was developed by the parent company DealCatcher.com.

Another Black Friday app comes from Dealnews.com. This site was named best Black Friday website in 2008 by PC World and PC Magazine.  The app even counts down the days until November 27 so you know exactly how long you have to plan your in-store shopping strategy.

Keeping with the penny-pinching theme, these Black Friday apps are totally free.

Interested in even more cool Black Friday iPhone goodness? Lifehacker is reporting that dozen of iPhone apps will be free or heavily discounter on Friday. Use the application indexer at AppShopper to search through the free applications.

The best part about using these online promos is that there is very little risk of getting trampled while looking for your Black Friday deals.