Installed Cupcake Development Build..

After building/compiling the latest master branch of android (cupcake), I installed it onto my phone. Here are the obvious changes I see:

1. New Local Setting Page - Gives you option to pick different locales and pick different text inputs.
2. New Option to view running and third party applications - An option to view running and third party applications from the normal application list. Does not provide a way to terminate them.
3. New windows opening/closing animation effect - a new popping effect when windows are opened/closed.
4. New default notepad - a very simple and ugly default notepad.
5. New Global Time application - not sure if it will be provided by TMobile but it’s just a rotating earth and I couldn’t get it to do anything else.
6. New Spare Parts Application - Once again not sure if the official version will have this, but it provides a number of extra settings such as setting windows animation and transition animation speed, font size, end button behavior and etc. It also has a “display rotation” option which supposedly should allow auto-rotate base on orientation across the entire os, but it is not currently working.
7. New Virtual Keyboard - The virtual keyboard will pop up on every edit box. I didn’t feel any haptic feedback but I am thinking that it’s just not there on the example keyboard. Because the phone does not auto-rotate (an option exists but it doesn’t work), it’s very hard to type on it. The sample keyboard also does not provide auto-corrections.
8. Slightly better looking buttons with more shadow.

Locale Setting Page

An option to view running applications

An option to enable opening/closing animation effects

default notepad application

Global Time Application

An application to set a number of cool options

Source [http://arronla.com/2009/01/installed-cupcake-development-build]