Sure. Any programmer can use stuff like Geo::Coder::US or basic database access to do geographic queries. This is pretty generic stuff that doesn't normally merit special mention. If expand on what you're looking for then maybe you'll get a more specific answer.
Comment on Re: LBS .....Location Based Services in perl
yes i was rushing out the door when i posted this!
that link is in the right vein but im talking about location based services as they relate to the mobile market
things like j2me and brew can do location based service calculations ... im sure there must be a way to use perl to do the same thing by hitting a server and figuring out where the fone is , i just havent found it yet
Oh. Well sure. You'd use the mobile phone's J2ME Location API to decide where the phone is and then just go use your server-side app and tell it that data. It doesn't matter what the server side is written in - you've probably just called your server as a URL or maybe as a web service if J2ME supports that.
Most of your hard work will be writing the client-side J2ME code to access the phone's hardware via the Location API to decide what the current location is.