WiiNintendo

**Note** These are NOT unique connections.

1. [NDS] Pokémon Diamond & Pearl - 1,569,625 connections*
2. [WII] Guitar Hero III: Legends of Rock - 681,271 connections
3. [NDS] Animal Crossing: Wild World - 294,497 connections
4. [NDS] Mario Kart DS - 283,118 connections
5. [NDS] Metroid Prime Hunters - 176,907 connections
6. [WII] Mario Strikers Charged - 143,092 connections
7. [NDS] The Legend of Zelda: Phantom Hourglass - 110,744 connections
8. [WII] Pokémon Battle Revolution - 102,713 connections
9. [NDS] Pokémon Fushigi no Dungeon Toki/Yami no Tankentai - 92,685 connections**
10. [WII] Mario & Sonic at the Olympics - 86,160 connections

* Pokémon Diamond - 929,956 | Pokémon Pearl - 639,669
** Pokémon Dungeon Toki - 49,172 | Pokémon Dungeon Yami - 43,513

Latest Releases:
USA | [WII] Medal of Honor Heroes 2 | 74,265 connections
USA | [WII] Geometry Wars: Galaxies | 5,532 connections
USA | [NDS] Ultimate Mortal Kombat | 16,604 connections
USA | [WII] Battalion Wars II | 21,154 connections
USA | [WII] Ghost Squad | 22,012 connections
USA | [WII] Trauma Center: New Blood | 3,661 connections

Total connections this week: 4,653,458
Total connections last week: 3,886,493

The difference is easy to attribute to the holiday weekend.

Source