New OSX 10.7 disadvantages 'paying' MobileMe members. Warning: with the use of Lion, MobileMe synchronization is no longer reliable!

Question

Today I received the following message from MobileMe advisor Caryn in a support chat:
"MobileMe is actually not compatible with Lion yet which could be why you are having some issues. Since MobileMe is going away, it actually has not been designed for use with Lion. iCloud is designed for Lion. Now its not saying that it wont work but this is the reason you are having issues."
Can you imagine I was flabbergasted?! Because if these "issues" mean that synchronizing iCal and Address book under Lion is not reliable anymore, as it has proven to be extremely unreliable in my case for the last weeks, I think Apple is letting the paying MobileMe customer down the hard way. This is something you would never expect Apple to do: introducing a new OSX ignoring severe damage they cause to thousands of ‘paying’ MobileMe members.
I had been discussing this matter with MobileMe support several times, but today was the first time I received a honest answer. I run a business using Apple equipment and MobileMe services. Many hours and valuable data were lost. Unacceptable!!!
Problem description:
In my case iCal 5.0 running at OSX 10.7 on several iMac's did not synchronize correct or not at all. New events are flagged with a small round ‘offline shaped’ icon and do not synchronize with MobileMe. Once the icon is present in one of the events, new added events are also flagged and do not synchronize. Appointments were lost between machines this way!
As soon as the icons in the events appear, also a warning icon is shown at the top of the (pop up) calendar list. Clicking this warning sign icon the following error is reported (translated from Dutch): “The server responded with an error. iCal cannot establish the connection with cal.me.com. Take care that you are linked with the Internet and try it later again.”
I have ran several tests with the assistance of chat support, including deleting and re-installing my iCal account several times and I even re-installed OSX Lion on one of the iMac's. Nothing helped. Switching the machines back to OSX 10.6 Snow Leopard solved all problems. Getting frustrated about losing a lot of valuable time!
So now I’m warning other Apple users in national and international social media discussion groups and Apple forum discussion portals. Skip the use of OSX Lion as long as you are a MobileMe member! If already purchased: ask for a refund!

Answer 1

@Chris: my machines: MacPro Original 2,66/11GB, macMini 3,1 2,0/4GB and a MBAir 2,1 1,86/2GB all running Lion since day 2.
This is the official article for MobileMe users about transition to iCloud - I admit: nothing said about MobileMe and Lion.
http://support.apple.com/kb/HT4597
This article dated Juli 29th "Known problems with iCal" does not talk about Lion either:
http://support.apple.com/kb/HT4038
And finally, the official status information on MobileMe says: everything fine.
So I doubt, that the statement from "Apple MobileMe support" (whoever that was) is something to be taken as the truth. These people surely are no OSX experts and I guess they know about Lion as much as we do. Since you never look into there eyes while communicating, you never know ....? And hiding behind a Lion is not very brave ;-)
Only to be sure: Do you have "Push" selected in all your iCal MobileMe account preferences?