Application idea: Tracking usage costs & comparing operator pricing

[Jani-Matti Hätinen]

        Hello,

I'd like to propose an application for tracking the costs of phone usage.

The application would work by simply keeping track of the calls, messages and 
data traffic made on the phone. Coupled with the pricing information of the 
user's subscription it would then be able to keep track of the costs. Various 
alerts and restrictions could then be set to keep costs in line.
  The application could also be used to compare operator and subscription 
pricing by coupling the usage data on the phone with the pricing information 
of different subscriptions and services. The same data could also be used for 
choosing the cheapest roaming network or pre-paid subscription when abroad.

The data on subscription and service pricing would probably need to be kept 
online (as opposed to being built-in to the application) and maintained by 
the community (possibly in a wiki-like format). The application could then, 
on demand, fetch the relevant pricing information from the on-line 
resource.

Thoughts?

-- 
Jani-Matti Hätinen