Here is an interesting turn of events. Last year, WiiWare titles were very limited, with barely one new game being seen each week for the service. Nintendo did make this up by releasing “limited time” demos for some of the top tier titles, which usually kept a demo up for around a month for specific downloadable hits.
Very quietly, Nintendo have now launched all 50 of the demos, and you can grab as many as you like for the time being. This of course includes the likes of the Bit.Trip series, Dive: The Medes Island Secret, LIT, and many other favorites. Due to the limited nature of these trials and past history though, it would be best to download all you can before they are taken down in the future.