EuroGamer
Japanese import review, by Tom Bramwell: "Wario Ware on the DS may not be touched by the same level of humour and ingenuity as the series' triumphant debut on the Game Boy Advance - nor, going on what we've been told by trusted import-loving friends, as much as Wario Ware Twisted! - but the weight of expectation shouldn't rob it of the kudos it deserves." [Score: 7 out of 10]
http://www.eurogamer.net/article.php?article_id=57502

GameFAQs
FAQs, cheats, reviews, and a message board.
http://www.gamefaqs.com/portable/ds/data/920757.html

GameSpy DS
Review, by Phil Theobald: "Combine the simple, addictive gameplay with great use of the DS's abilities (not to mention the great songs that play during Mike, the karaoke robot's intro and spooky goth chick, Ashley's stage), and you have the best reason so far to own one of Nintendo's new systems." [Score: 4.5 out of 5]
http://gba.gamespy.com/nintendo-ds/wario-ware-ds/587485p1.html