Note that as CTO of Cartifact, I may not have the time to get back to you in a timely fashion.
A new application for the iPhone which allows you to send someone your current location without having to sign up for some messy and intrusive service first.
My projects page lists the various software projects that I've been a part of.
A list of the various products that I've posted around the web that you can download and buy.
Free open source software I've worked on that you can download.