TWRoO on 06 March 2010
Lost Winds (both of them) and NyxQuest/Icarian (it's NyxQuest here in UK too.... in fact pretty sure it changed to NyxQuest everywhere) are the best platformers I believe.
(Max & Magic marker is also supposedly good)
World of Goo is awesome, if not really a platformer.
I would also like to reccomend Swords & Soldiers as my most played Wiiware game, and I think my favourite too.
