We are. Currently, my day job is heavily invested in the VMware ecosystem, and there's no likelihood that will change any time soon... So we are already at the point of testing it, though that probably wont' happen until after the New Year.
I haven’t looked at the vmware hcl, but I heard a lot of hardware is no longer supported. I also read that vmware no longer recommends booting from sd cards.
That's all correct. Part of the point of VMware (and to their credit) is to dramatically limit you to a small pool of high quality, well tested hardware. That's partially how they maintain stability.
KVM has a small pool of hardware smart to use. But "supports" almost anything. It's handy to know it will always work, but sucks because people deploy it on crap all of the time.