Just installed, app doesn't start up just exits immediately

I just installed the VoiceCentral App on my iPhone, with ios4. When I open the application on my iphone it shows a blank screen and immediately exits. So doesn't seem to work at all for me, wondering what this may be and if it is a known issue? Looks exciting, hope I'm able to get it working, any help would be great
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Thanks,
Chris

Thanks,
Chris