Yes. I upgraded mavericks to yosemite on an 11" 2011 mba. It works pretty good on that.
I also did a clean install onto a partition on a 2010 mbp which now dual boots yosemite and mountain lion, which also works pretty good.
I have also made a virtual machine of yosemite in vmware fusion, but that doesn't work very well.
I guess at this point I'm more curious how DP2 runs on 2011 Air since it just came out.
But those are still main concerns in the previous post ^^
DP2 is very smooth on my mid 2011 13 inch MBA, much better than DP1 and comparable to Mavericks![]()
The scrolling on DP2 is pretty much as smooth as you could possibly imagine![]()
Overall it's very smooth and I think it's even faster than Mavericks, which had that annoying stuttering when scrolling in launchpad.