I just received an email form the OKYWEB people and found out the following:

"the video interface will be compatible with U.S spec televisions
The soundchip is called a Dream chip and is a very high quality sound chip.
It is only available from us at the moment and through-out the U.K.
USD price around 580 dollars inc shipping"
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Riding on the Avenue of Time
cassp50@gmail.com