Last night a hotfix rollup package (build 4.0.3561.2) for FIM 2010 was released. You'll need to go through PSS for now to get it, however, it should available in about a month from now to the general public.
This hotfix rollup package includes all the previous hotfixes that are described in the following Microsoft Knowledge Base (KB) article: 2272389 (http://support.microsoft.com/kb/2272389/ ) A hotfix rollup package (build 4.0.3558.2) is available for Microsoft Forefront Identity Manager (FIM) 2010
The great news is that this hotfix should include a fix for the casing problem, that I've blogged about earlier.
Find more information on the hotfix here.
Update: Sorry, if I've mislead anyone; word has it that the update will be published under this KB when it is released to public. But you should be able to get it now, if you contact Microsoft PSS.
Update: This rollup package does not include the fix for the casing problem. I've just tested this.
However, if you contact Microsoft PSS, you can get the fix from them. I waiting for my "fix" right now and will update as soon as I get to test it.