Late to the conversation but trust me, Tandy will sue. I worked for Radio Shack for 10 years, a company called Auto Shack started up and within 6 months Tandy sued over the name and won.
When you work for a large corporation like them, your ideas become property of the main company.
Another example, my father held a number of patents for cans and worked for American Can Company. These products made millions of dollars, Dad was taken care of but ACC made all the profits.