Don't wait: http://mynaweb.com/ [Yes, this is a shameless plug for my startup.]
Also, despite this being a slightly pro a/b testing post, I have to say it's actually made me more interested in trying out Myna's approach MAB algorithm.
/former AB test software dev who fought my users to try to stop them from misinterpretation results, and failed.
Acceptance of this fact has avoided a lot of potential ulcers for me.
See my longer top-level comment for some of the trade-offs.