MobileMe vs iCloud email alias

I was a satisfied MobileMe user and had configured so called email aliases. These were some external POP email accounts ( 5 in my case ) read by the MobileMe service and pushed to my iPhone, iPhone and MacBook.

Now I have migrated to iCloud for a while, but there the concept of email aliasses has a totally different meaning. They are now just alternate addresses ( max 3 ) for your Apple ID ( your email address ) that you can use to make online purchases for example. However, the old settings also seem to just work; the POP addresses are still just read, without the ability to configure them in the iCloud email preferences.

Don’t ask, just enjoy.

But sometimes it’s not quite right. The emails are properly read and forwarded to my iPad2 and MacBook Pro, but not ( always ) to my iPhone4. While the settings are just the same.
Settings -> Mail, Contacts, Calendars -> Fetch New Data -> Push

Turn this setting on the iPhone4 temporarily into Fetch and after a short time into Push again. It might be a solution … fingers crossed.

iPhone4 iOS v5.0.1
iPad2 iOS v5.0.1
MacBook Pro OS X Lion v10.7.2