The answer is.. Yes... yes it is.
Proof:
First game day :
http://www.flickr.com/photos/77376581@N06/6932816115/in/photostream/lightbox/
Second game day (201k XP!!!)
http://www.flickr.com/photos/77376581@N06/6787718748/lightbox/
Third game day:
http://www.flickr.com/photos/77376581@N06/6934338611/lightbox/
Sigh.... relief of lvl 60, and i must say, Very proud to say i made 200K in one game day, and managed to hit 60 in less then 12 hours----
I think there should be an achievment for that!!