OpenSolaris "Indiana" Information
Some of the technology issues with Solaris/OpenSolaris at present include high adoption barriers, increases in installation media size, no clear binary technology base, and no formal roadmap or public process for Solaris Express Community Edition. Some of the adoption barriers include the installation, packaging, and hardware support. You can find additional information on the Solaris installation experience in this article.
The customer issues...
While much of this information has already been pointed out, Project Indiana will be an OpenSolaris binary distribution that is community built and will feature a single CD installation and a network package repository. The Project Indiana distribution will be 100% redistributable and a base distribution in which to build Solaris with binary compatibility.