SDK Spriter for the Wii U is nearly done. If all goes according to plans, it will be sent off to Nintendo in North America tonight and Europe tomorrow night (with a hopeful September release). With the app, there will be a companion online gallery of pixel art, featuring spritesheets and tilesets. An early preview of the website is available at http://gallery.sdkspriter.com. Like with http://gallery.sdkpaint.com, this new website has a membership account system that is shared with this community. Thus, members here can vote on and comment on art on both websites, and anyone who signs up on either website can take part in the community here.
Once SDK Spriter launches, the focus will return to this core community and upgrading its featureset to work better across multiple platforms.