It seems that Echoes of Sorrow was developed by Blitpop Games. The game on Tim's list that I know of that was developed by Dave Gilbert of Wadjet Eye is Emerald City Confidential.
Ob, I agree that Emerald City is adventure lite, maybe not even lite; but being as it was produced by Playfirst, the developer of Diner Dash and other hugely successful casual games, it ended up being sold/directed at the casual games market. Unfortunately all of Playfirst's casual games were removed from the Big Fish website many years ago, but fortunately I have many of them.
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witter
