Imagine for a moment, taking your existing GUI or command-line driven application, and grafting onto it a new interface type, a Web Interface?
A remote machine can access your application no differently than a local client, for that matter, any number of remote clients can use your application with high scalability and no extra deployment of the application!
Web interfaces are platform-neutral, and thus can be accessed from platforms that REALbasic natively does not support completely (eg, various flavors of Linux or deprecated versions of Windows) or at all (eg, Solaris, BeOS, BSD, and so on).
Included absolutely free is the amazingly easy to use Inline HTTP class from Babbage Technologies. Yes, you get it all for a laughable price, so download it today and slap a web interface onto your program. Go ahead, it really is easy.