I thought this topic was to troll against the topic I made today. Thought it said "DS beats GBA sales this week". :P
Of course, it's no big surprise. The system was selling a million a week so it beating out the previous handheld is no surprise.
America on the other hand is a different story. IIRC the GBA did the best in the US, but the DS does the worst in the US. It will be much longer till that happens.