Glenn,
Those are nice pics. I don't recognize the 1st one. Where's that at??
The sony center is really only about 3 blocks up the street from the 'Gate' at potsdamer platz. It's sort of a strange place as it just has a couple stores like a sony store (duh) and a VW store (not a car dealer, but like a show-off store of sorts---like i said, sort of strange).
Living so close we have now been over there probably about 5 times, even once on a day-trip just to get some American food that we'd been craving (one being an egg mcmuffin! -- they don't sell them at the McD's in Poland). We really like the city but found it in the beginning to be less tourist-friendly than we'd anticipated. There's really a ton of exhibits and places which only display German. And while we are all about trying to be conscious of others' cultures and trying to function in their language, the Germans never seem too interested in working with us. According to our Polish friends, that's not b/c we're American, it's b/c they're German.

Who knows.