GPS speedometer

Is there any standalone software that will give a speedo readout from a GPS data stream, preferably in MPH?

Cheers

http://www.mp3car.com/vbulletin/software-and-software-development/32141-digital-speedo.html

tried that but it didn't work, however, I see the thread has grown in length with a new post, will try again.

Cheers