So Vin Diesel Just Posted a Photo of him and Groot

Should we be jumping for joy over the fact that we're getting an "almost-yes" on Diesel's involvement in Marvel Studios' "Guardians of the Galaxy"?

Probably so because this has got to be the best casting news in days. 

I'm speculating this is 90% true already and I need the other shoe to drop (an announcement from Marvel Studios or something).

Still, a big win for Marvel Cinematic Universe if this is true!