This one looks cool for anybody that don't have Photoshop, looks like a clone... as for me I will stick with Adobe Photoshop... you should have posted this in the General Forum because I think most everyone here has programs already... either way good looking out someone may use this.
But Not Me.....
Big Disadvantages:
Limited Fonts, Brushes, Filters, Blending Modes, No Masking that I could find, etc... extremely limited... only good for basic editing.
http://www.splashup.com/