Buying Series of articles/reviews on cell phone locators/tracking apps and services

I'm looking for a series of informative articles related to cell phone locator/tracking apps and services, both paid and free. The purpose of the articles is to make the target site an "authority" on the subject.

This will be a series of articles, that will run to around 25k-30k words in total. U.S writer only, unless you can clearly demonstrate that you have real world experience with these apps.

The article is to be written in first person, in a conversational style, as if you were explaining the topic to a friend.

Needless to say, these articles need to very high quality, not your ezinearticle filler content.

You must be able to demonstrate first hand use of the free apps - i.e. can supply detailed review including screens shots.

PM for more information and I'll supply several links to the style and quality of review I'm looking for.

Include samples or links to your published articles that relate directly to the above topic. And include your cost per word.

Payment by PP and no 100% upfront payments will be made - though this negotiable depending on your past track record