Le Chaud Lapin wrote:
Being a software developer, I am very suprised to discover that not
every aicraft costing over $30,000 has a full-featured glass cockpit.
Unless I am missing somethnig, it appears that everything that a pilot
needs can be made with very very cheap hardware.

Already been done.
10-15 years ago Burt Rutan had one of his aircraft (Catbird?) completely
controlled by an Apple laptop computer with custom coded software.