Turn screen off when face down in any app?

[WhiteBlazer01]

Wirelessly posted (HTC_Touch_Pro2_T7373 Opera/9.50 (Windows NT 5.1; U; en))

I love how the screen shuts off (and speakerphone turns on) when in a call, but I would also love it if this worked with any other app. I was using Visual voicemail, and wanted to face the phone dwn and use speakerphone, and I was listening to music, and wanted to put the phone down so I can enjoy the music from the speakers on the back of the phone, but I can't (music also stops when the screen is turned off).

Any ideas on an app/tweak to make the screen off & speakerphone feature work in other areas of the phone?