Okay. I wanted to not delete mobileme yet but use the new icloud on a separate account. What I did was turn off mobileme on my iphone and imac (still want to use with my macbook pro). This removed the mobileme calendar from my phone. Then I had an iphone calendar entry and an icloud calendar entry. I turned icloud calendar off and then back on at which point it merged the two leaving me with only icloud calendar and evrything synced to my imac and icloud.com.
All this without disturbing my mobile me account that works with my macbook pro. Not ready to go to lion on that one yet.