Ideas for Apps?

In Sunday's Arizona Republic there was an article about a nifty new app for the iPhone/iPod Touch that caught David Passell's attention. He writes "though I'm not a fan of telephones, in general, that almost made me want to get one. I need something like the application described." The story goes on to tell about a group of developers in Phoenix starting the Phoenix iPhone Developer Group, nicknamed "Pi," to bounce ideas around for possible new apps. David wonders if some programmers in PMUG could do something with this idea.