prices and stuff...
IBM Power 595 64way 5ghz with 1TB of memory costs bit over 7M USD list price with 3y maintenance (24x7 is standard with these babies)... included in price are PowerVM enterprise & Management edition for AIX...
also regarding innovations please visit...
http://www-03.ibm.com/technology/index.html
and also... who has 100% market share on Mars and Moon? guess who... IBM :-)
regarding green and things... latest published list
http://www.green500.org/lists/2009/06/list.php
(pay attention on 4th system on list... look it's no.1 from Top500... )
and YES they are all based on IBM Power technology...
btw I work for IBM... moved there from HP where I really enjoyed working with Alphas (which where very good systems and they are withdrawn in favor to Itanic crap)... and do u know why I moved to IBM... it's because of TECHNOLOGY and INNOVATIONS... and I haven't been wrong...