WiiWare has been a struggling platform for a long time. Releases have been irregular and rarely get much promotion or hype (let alone solid release dates) before they appeared on the service. Even when good games are released, gamers largely ignored them for a variety of reasons.
Today Nicalis announced that La Mulana, a game that has seen a lengthy development cycle and been "coming soon" for many months, was finally cancelled. The basis of the decision was that timing just wasn't right and WiiWare didn't offer a reasonable chance for success if the game was released there. Not a decision I personally like hearing, as La Mulana was a title that looked very enjoyable, but one that makes a lot of financial sense and seemed inevitable given the long delays.
Best of luck to NIGORO (the developers) with their PC release of La Mulana, and Nicalis with their projects for other platforms.