I use ING Direct + Mint as well for all banking. I was interested in Simple because it seemed to be the combination of the two - with a drive to improve both formats. However, I was disappointed on not being able to find any details on how their banking works. I'd love to track my finances from within my banking website, but not at the expense of interest rates and multiple/joint accounts. (Do they offer that?)
No Joint accounts yet. They are definitely planning on it, but there's no timeline at the moment. In addition, there's no way (that I've found at least) to separate out buckets for saving towards goals, which is also a pretty big deal for me.
