When a company "introduces" a new product, it tells the general public that the product will be available.

You can use the phrase "___ introduced ___" if the company has started just selling the product. You can also use it if the company just announced that they were going to release the product:

They just introduced a new ultra-flat-screen TV at the Consumer Electronics Conference which is supposed to be available later this year.

Notice that this phrase is followed by the singular ("introduced a new ultra-flat-screen TV ") instead of the plural ("introduced new ultra-flat-screen TVs").