So just to follow up on this thread, I did try Carmijok's cream cheese icing recipe yesterday on a cake for my Mom's birthday. I have to say it came out GREAT!
My Mom isn't a big fan of fondant so I decided to make a "Hummingbird Cake" (bananas and pineapple and pecans, filled with dulce de leche) frosted with the cream cheese icing recipe that Carmijok posted. We had a party at my daughter's house for my Mom and the cake sat out for about 3 hours in total before it was served. There was still some cake left and my daughter said they had more today and it tasted just as good and looked as good as it did yesterday.
It was so easy to make and it was great to work with and most of all it tasted delish! My youngest daughter is being married in October this year and she now wants this cake with the cream cheese icing as one of her tiers.
My plumerias didn't come out the greatest
but it didn't matter because the cake tasted soooo good!