Your proposal looks interesting, but you are going to have some stiff competition from various products and websites that already provide these services.
One of the obstacles that we face as a company are continually evaluating cost/profit margins on charter flights. With fuel costs varying so widely between locations it's hard to come up with just one rule of thumb to keep the flights in the black and still be competitive within the industry.
If you could reinvent some kind of cost analysis then you might be onto something.
But as of right now our pilots use fltplan.com for domestic flight planning, a Jeppesen product for oceanic, and Universal for most other things. For tracking we have a company subscription to flight tracker (I believe). But who knows if you're product is price competitive we could re-evaluate our options.