I was under the impression that my T2i doesn't have the inbetween ISOs like the 7D (1250, 2000, etc)
I was just looking back at some images I took in march and I noticed in one batch of pictures a number of photos that according to the exif (?) data, are 1250, 2000, and 2500.

Has anyone encountered this?

I bet the camera was on Auto-ISO!

Must have been, I just didn't know it was possible.