@andybot said:
:? I was just thinking what if AutoDesk had bought SU, would it be killed off already?
Not to say Trimble won't still toss it overboard
I'd like to say "no" they wouldn't have. I mean look at FormIt. It is basically a SU like program for mobile devices and now on the web (pretty rough but still a beta). It's free and sure it is meant as tool for Revit users but no foul for wanting to further your own products. More work is needed but it looks to be at least progressing. I would like to think that SU would have either been enhanced or turned into a better tool.
The recent 123D tools are another nice tool set for users. Although I did not like the sudden shift that 123D Design made from a pro-sumer tool to it's more simplified form.
SU has been my go to app for some time (since v2) and I would hate to see it die but I do not like it's future 



