Join us at NextSpace, a brand new venue in the heart of downtown. Please be on-time or have my cell number if you plan to be late (I have to let you in). If you don't know my cell number, email me or obtain it by solving the simple cipher posted on the door.

Rajiv Aggarwal will present a how-to of telephony applications with Ruby and Rails (and Asterisk) based on his experience building CellGuided. CellGuided is hosted at Slicehost (a high quality commodity VPS service).

CellGuided allows you to find, create and share tours and treasures hunts. All directions, clues and responses are spoken to you over an ordinary mobile phone. This allows you to enjoy tours that others have created and also allows you to create treasure hunts that you can share.