I was recently in Gothenburg, and I was just now looking through the site to get a nostalgia trip.
Not much info though.
I have to recommend the following.
Restaurant: Bistro Merlot. Close to the main street Avenue of Gothenburg. Think the site was bistromerlot.com definitely worth a visit. great food!
Sites: Slottskogen - the park in gothenburg with seals, elks etc...
Skansenkrona - old fort guard site on a hill! nice views over gothenburg and historic site.
Haga - old area with small houses, cafes etc.. really good.
enjoy your visit! i definitely did!
Simon Harries.... London