Learning German

I’m going to Berlin for a month starting August 12th, and I’m looking for ways to learn basic German (enough to order a beer and find wireless internet).

So far I think Babbel and Mango look the most promising. Sadly, I can’t seem to track down the windows app I really enjoyed where you look at image flashcards. It was really fun and effective for Spanish, but I can’t remember the name of it for the life of me.

Any other suggestions?