Will Q for Mac &/or Mint.com ever "real" support for investments

Essentials is a total rewrite of Quicken for the Mac. It's a big job and Intuit is not rushing it. Whatever you see now is already significantly more than it had when first released.

I believe Intuit does intend to add much more capability to Essentials (they have said so) ... when, and how much, remain to be seen.

I'm strictly a Windows user. The above gleaned from posts in the Quicken Live Community, which has included some comments from Intuit, and where a couple of Mac users have posted comments in general topic areas that attempt to address issues common to Mac and Windows users.

I have no idea what Intuit's intentions are for Mint.

I can't see Mint ever supporting investments the way you are referring. They were playing with Quicken Online and making some improvements but obviously decided it was better to buy an existing product. Mint's revenue model appears to be directing you to credit cards, mortgages, etc. and getting some kind of commission. If you look at the site, the budgeting options are pretty straightforward. Mint seems to fill the same role for Quicken that Chevrolet did for Cadillac. Gets you introduced to the brand at a young age.

I too use Quicken to track my investment activity for year end taxes. I think Quicken will be around for a long time but don't look for Mint to try and replace it.

Oddly enough, I just bought a MacBook Air and a copy of Essentials from Ebay to try. We shall see how it goes

You just wasted mucho doolah on the Mac product. Suckah!!!!!