My understanding is that ICstudio 2008.2 does not support OA I/O. However, our newest product, Pyxis Layout, does support this. Here is some addional information from Chris Cone, one of our Pyxis TMEs:
Our new rebranded product – Pyxis Layout, with the initial v10 version released last month – supports OA import and export. In the documentation, we state that v10 only supports exporting designs created in the Pyxis Layout tool and then importing them back. However, it is possible to import a Cadence design if you have a matching Pyxis PDK.
Here is a link to the documentation (Look for Chapter 6 – Open Access Import/Export):
you have to use Pyxis V10.1 to Import/Export OpenAccess.
This Version also supports iPDK and Ciranova PyCells.