Ok so ICO takes place after SotC?
It's a bit of a spoiler, so don't read the next part if you want to avoid that.
The protagonist of Shadow gets turned into a horned infant at the end, and he's the ancestor of the boy in Ico.
As for the thread title, acumen, you didn't need to write out something that long. Just write "previous" instead of "prequel". Duh.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs