The July issue of Nature Physics has been released, and my story "Calibration" is in it. (To be precise, it's at volume 4, number 7, page 580.)

One can find the story listed at the journal's web site, www.nature.com/nphys/journal/v4/n7/index.html#fut, but at the moment it look like you'd have to pay to read it online. 
 

Nature Physics just sent me the proofs for "Calibration." They tell me it will be in the July issue.

I just got the word that my story "Calibration" (a "hard" SF story) will appear in the Futures feature of Nature Physics, probably this Summer.