I have this question often when talking about VMware. IS Solaris 10 available under VMware. Yes Solaris 10 (X86) is feasible under VMware, though it is not too spread yet.
(Solaris 10 X86 Running on VMware)
If you desire to Install Solaris 10 (X86) on VMware all you need is:
* VMware (Any Edition)
* 4 images of Solaris 10 (x86) CDs (Total: ~ 1.4 GB)
* ~ 4 hours time (installation)
* ~ 4GB HD space on the host system in a small installation
* Good Unix knowledge
* VMware Virtual Machine settings: 256MB RAM, virtual HD = 8GB, networking = Bridge
That all required,
Sun Solaris 10 Booting Inside Windows Vista on Vmware Workstaion 6 Everything Working Video!
Enjoy the ride,