I’ve written a number of kstat-functions for Torsmo monitor and now it successfully works on Solaris with lightweight window managers. Pradhap Devarajan has prepared a SFEtorsmo.spec and now you can make a package independently.
Torsmo on MilaX:

My torsmorc file.

2008-05-18: Conky-1.5.1 now partially ported.
Screenshot of Conky running on OpenSolaris:

You can find SFEtorsmo.spec and SFEconky.spec on SFE repository.
OpenSolaris conky pkg available in  jucr.opensolaris.org/pending.