또 쓰게 되는군요....
 님들의 답변을 듣고 확신을 가지고 오라클에 문의를 한 결과
아래와 같은 답변을 들었습니다. 
좀더 기다려야 되겠습니다.
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안녕하세요 오라클입니다.
저희 Site에서 확인 결과 Solaris Intel 2.8에 V8.1.6이 Project중인걸 보실수 있습니다.
안녕히 계십시요.
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Certify - Certification Matrix: Oracle Server - Enterprise Edition on Sun Solaris V2 Intel
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<H3> Server Certifications</H3>
 <B>OS</B>___________________ -
<B>Product</B>______________ 8.1.6 (8i) 64-bit
<B>Certified With</B>________ N/A
<B>Version</B>______________ N/A
<B>Status</B>_______________ Projected
<B>Addtl. Info.</B>___________ Yes
<B>Components</B>_________ N/A
<B>Other</B>________________ N/A
<B>Install Issue</B>_________ N/A
 <B>OS</B>___________________ 2.8
<B>Product</B>______________ 8.1.6 (8i)
<B>Certified With</B>________ N/A
<B>Version</B>______________ N/A
<B>Status</B>_______________ Projected
<B>Addtl. Info.</B>___________ None
<B>Components</B>_________ N/A
<B>Other</B>________________ N/A
<B>Install Issue</B>_________ N/A
 <B>OS</B>___________________ 2.7
<B>Product</B>______________ 8.1.6 (8i)
<B>Certified With</B>________ N/A
<B>Version</B>______________ N/A
<B>Status</B>_______________ Certified
<B>Addtl. Info.</B>___________ Yes
<B>Components</B>_________ None
<B>Other</B>________________ None
<B>Install Issue</B>_________ None
 <B>OS</B>___________________ 2.8
<B>Product</B>______________ 8.1.5 (8i)
<B>Certified With</B>________ N/A
<B>Version</B>______________ N/A
<B>Status</B>_______________ Desupported
<B>Addtl. Info.</B>___________ None
<B>Components</B>_________ None
<B>Other</B>________________ N/A
<B>Install Issue</B>_________ N/A
 <B>OS</B>___________________ 2.7
<B>Product</B>______________ 8.1.5 (8i)
<B>Certified With</B>________ N/A
<B>Version</B>______________ N/A
<B>Status</B>_______________ Desupported
<B>Addtl. Info.</B>___________ None
<B>Components</B>_________ None
<B>Other</B>________________ N/A
<B>Install Issue</B>_________ N/A
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<FONT SIZE=-1><I>Copyright &copy; 1998 Oracle Corporation</I></FONT>