Stickball, this is the list of announced WiiWare games so far: http://en.wikipedia.org/wiki/List_of_WiiWare_games
You wanted other major titles?
LostWinds is a full blown 2.5D platformer with a unique design and great graphics for a download title.
Eternity's Child is a stylized 2D platformer that was actually canceled on Xbox Live and moved to WiiWare and DS due to size limitations caused by HD graphics and the Live Arcade size limit.
Everyone's Pokemon Ranch lets you wirelessly transfer up to 1000 of your Pokemon from your DS straight to your Wii and raise them, interact with them via Miis, take pictures of them, and trade them to your friends through their ranches.
A personal favorite of mine is the $5 reimagining of the flash game Defend Your Castle with the amazing new art style. Oh and before anyone criticizes paying for a Flash Game, that's what N+ and flOw are.
Along with these are a bunch of really cool puzzle games like the physics based World of Goo, the classic Tetris, the revival of Dr. Mario, the ever-present Bomberman, and the puzzle shooter Plättchen Twist 'n' Paint.
Most of the announced WiiWare games that support multiplayer also support online multiplayer. Some are priced better than others (it's at the discretion of the developer basically), but there is an extremely wide range of interesting announced WiiWare games already, many of which compete with and even Surpass the best of Xbox Live Arcade's originals in complexity.





















