We'll be defedning our castles and building our little cities before you know it!
Unless you read this that is...
Then you'll know it.
May 20th is Europe's official WiiWare release, and USA will get it 12th May, so not too much of a difference there. But just enough time for Americans to let us know which games are decent enough to buy.
Games will range at 500 Points upwards, and I wouldn't doubt a few of them costing up to 2000 points, depending on how good they are obviously.
Below are a few WiiWare trailers you might want to look into...