Maybe IBM announced Power6-based servers on System p before System i because System i doesn’t need Power6 as badly. It all comes down to System p customers hungering for more and more processing power. Meanwhile, System i folks can take advantage of features like capacity on demand and get by until the Power6-based i machines hit the market.
That’s just another reason to focus the POWER6 on the Unix world. If Unix is constantly hungry for more power . . . but the System i world is relatively not as hungry . . . no wonder IBM has had a tough time making quarterly financial reports that show positive revenue growth for the System i group.
Sure, every hardware manufacturer has this same problem, but I can’t help but believe it hits the System i harder than others.