With this project you will have a pixel perfect camera with dimensions that you choose.
How To Use
The first room of your project should simply run the InitGame script and setup default variables.
Open up the InitGame script and set the global.gameWidth & global.gameHeight to whatever dimensions you want. global.zoom determines the scale level.
The default dimensions are 320x240 with a zoom level of 2. So this means the game will run at 640x480.
Visit the support link for more info.