Re: I could have sworn I heard about them doing this years ago
Yep, "Cloud Managed Services for z" AKA "zCloud" has been around for over 10years. Its running production (and non-prod) mainframe services and workload for many 'famous name' companies.
IBM offloaded it with the Kyndryl spin, so its odd that they now want to re-invent it under the guise of "IBM Cloud". If its a strategic platform, why didn't they hold onto it instead of spinning it off to Kyndryl?
Sounds like yet more daft leadership decisions going on at big blue. "Why aren't we doing mainframe in our Cloud"? .... "We were, but we got rid of it with Kyndryl." ... "Ooops! Well we'd better re-invent that wheel then."