I was able to get MaxManila 2.9 to work with 2011. I took the maxmanila 2.9 cab file and converted it to an EXT usinf a cab to EXT converter found over at XDA
http://forum.xda-developers.com/showthread.php?t=525302
Then I dropped into Calkulin's 1.5 b3 kitchen and built a 2011 ROM using a 28223 SYS and it seems to work great. EVERYTHING seems to work.
I've attached the EXT that I used.
**EDIT**
I have already included patch 4 into this so no need to add the patch.
Also, I noticed this adds the Footprints and Documnets tab to manila, however the don't function. You can just uncheck them in the setting so they don't show. I'll have to look thru what files to remove from the EXT in order not to add them.
**EDIT2**
As an FYI, while this does work, since it was built on the prior version of manila, it essestially replaces version 2011 with 1922. Where I caught it was when I went to use the new delete feature on the email tab and it wasn't there. So in reality you will end up with almost 1922 all over again.