iCloud for mail.app on iOS?

[alew]

So I was able to set up my new iCloud email on my 3GS running 4.3.3 via iMAP settings. It works flawlessly there. Yet, when I try to do the exact same thing with my CDMA iPhone 4 (4.2.8) it works but repeatedly tells me that the iCloud email isn't going to be able to receive or send emails....and when i tested it anyway, it does send and receive emails...but with an annoying delay. Does anyone have any advice/clues as to why this might be?

 

[shandyman]

So I was able to set up my new iCloud email on my 3GS running 4.3.3 via iMAP settings. It works flawlessly there. Yet, when I try to do the exact same thing with my CDMA iPhone 4 (4.2.8) it works but repeatedly tells me that the iCloud email isn't going to be able to receive or send emails....and when i tested it anyway, it does send and receive emails...but with an annoying delay. Does anyone have any advice/clues as to why this might be?

it's beta, it's not working properly at the moment.

also the dev notes said iCloud data is likely to be deleted over the beta, so you may lose all the data you have saved on it.