http://en.wikipedia.org/wiki/Flipnote_Studio
Reception
As of January 10, 2009, 38% of all DSi users had downloaded this application, and there had been more than 100,000 user-submitted creations.
[10] During its first six months of operation in Japan, Flipnote Hatena reports having received over 1,000,000 user-submitted creations.
[8]
IGN gave the Flipnote Studio an "outstanding" rating of 9.0/10, while also giving it an editors' choice award.
[11]
Official Nintendo Magazine awarded it 95%.
Added at: 04:51
First thing I noticed on my son's DSi.