Surprisingly, I haven't seen the usual blogfest of speculation about the Nobel Prize in Physics. The announcement will be this Tuesday. I will throw out my same suggestion as last year, Michael Berry and Yakir Aharonov for nonclassical phase factors in quantum mechanics, though the fact that the prize went to condensed matter folks last year means that this is probably less likely. Another pair I've heard floated every couple of years is Guth and Linde for inflationary cosmology. Any ideas out there?