Microsoft's Xbox Live on mobile devices
You can find my main contributions to my 4 months at Microsoft here: Xbox Live on iOS sample code app

Tic Tac Toe
This is the most fun I've ever had doing a code test for a potential job... Level 11 asked me to create a quick Tic Tac Toe game, and this is the result. It also helped get me the contracting job....

You can find the project here: DPL_TicTacToe (on my github page)

Seattle Landmarks App
This is the result of a coding test I was given during my job hunting a couple of years back. The assignment was to download a dataset from a Seattle city government website, and then display and use it in some fashion. I chose a dataset showing information about Seattle historic landmarks.

You can find the files here: SeattleLandmarksApp.zip (4.1 Mb)

This app uses the SODA protocol to download the dataset from the city website, displays the landmarks in a searchable UITableView, and also can map landmarks in a MKMapView. Read the included read-me file "SeattleLandmarks_ReadMe.pdf" for more info about this quicky project.

Nova Rift Game Files
Here you can find some samples of iOS coding in Objective-C. These files are not a complete application, however. Included here are several files from the first iOS project I worked on, "Nova Rift: Arena". Nova Rift began as a home-brew project to teach myself how to code for the iPhone, but then, with the help of a friend, expanded out into a published multiplayer iPhone/iPod/iPad game app.

You can find the files here: iOS_Samples_DPL.zip (25 Kb)

The sample files show several related Objective-C classes for graphical objects from the game:

• GLSprite.h/.m - the base OpenGL displayable object in the game. Most objects that appear on-screen in the game sub-class off this class.
  
  
• GLShip.h/.m - the base class that all spaceships in the game sub-class from. Sub-class of GLSprite.
  
  
• GLDroneShip.h/.m - this class runs all the AI driven drones in the single player side of the game. Sub-class of GLShip.
  
  
• GLNetShip.h/.m - this class runs all the on-line player ships in the multiplayer side of the game. Basically, these ships run off of on-line packets of position and velocity data sent from other players through an on-line server. To handle lag, between packets the code does its best to use the last packet's information to guess where the ship is currently, and when a new packet arrives, then quickly interpolates to the new position. Sub-class of GLShip.