Choose "Run emulator with properties" and set

• Android OS version: 2.1
• Density: 160
• Resolution: 480x800
• SD card: 16M
  Uncheck "Reset emulator state at start-up" and "Show emulator window"
  Delay: 0
  During build the following error message is displayed:
  [android] Using Android SDK: d:\tools\android-sdk-windows
  [android] Starting Android emulator
  $ d:\tools\android-sdk-windows/tools/emulator.exe -ports 2331,2332 -no-boot-anim -prop persist.sys.language=en -prop persist.sys.country=US -avd hudson_en-US_160_WVGA_android-7 -no-window
  emulator: ERROR: unknown virtual device name: 'hudson_en-US_160_WVGA_android-7'
  emulator: could not find virtual device named 'hudson_en-US_160_WVGA_android-7'
  [android] Emulator did not appear to start; giving up
  [android] Stopping Android emulator