Nope not invasive at all. I should have clarified. I'm just as starved for info The email seemed to be a canned response with my name at the top, but there was a pdf admissions letter that seemed more personalized. I got the standard full package Fellowship that a lot of the universities give out as far as I understand--Full University Fellowship for the first year, three 9-month Teaching Assistantships (2nd, 3rd, 4th yr), a 9-month University Fellowship (5th yr), and funding for research in the summer months. I think that's fairly standard.
There also was a note about a hard deadline for making travel arrangements by Feb 5 for the visiting weekend at the end of February. That probably means all the admissions decisions will have had to come out by then.