If you can tell me how to do this using only a website (no phone specific programming) it would dovetail nicely into a startup idea I'm considering. I figured

If you can tell me how to do this using only a website (no phone specific programming) it would dovetail nicely into a startup idea I'm considering. I figured it would require getting users to install my software on their phone somehow, dealing with phone companies, and learning something called "Symbian".