A user would be able to create an account when the program first starts which includes password generation.  After that the user would need to enter their password to access the tool.  The user could add weapon, remove weapon, edit weapon.  Information would include a myriad of data, one of which includes the serial number.  I was wondering if this would be something that AR15.com would be interested in endorsing?   It is not a complicated tool but simple and safe.  The ARFCOM logo would look great on the tool.  

Again, this is just an idea.  Was going to just make one for my personal use and I am not sure what the community thinks about keeping a log digitally.  (Log is helpful if a firearm is stolen, sold etc.)  I can put together some mockup screens or even a simply demo software.

There will be a notes field where you can input any notes you deem are needed regarding each specific firearm.  So my question would be to any potential users would be...what fields in an personal inventory system would you see as necessary?

With regards to encryption it would not be difficult to implement a decent level of encryption.  Will want to avoid things like the password being stored in plain text in the user database for the application and incidents of Bobby Droptables.