This is only for rooted users. No need to post if the update isn't available to you yet. IF it works for you and you're rooted/rom'ed, post.
Root: Yes or No
ROM: Tell us which
Reuslts: Still rooted, working fine?
As for me, the update isn't available yet but I want to know what I'm getting in to before I allow it.
EDIT: So far it looks like the update won't even install for rooted users - Recovery image gets in the way...
EDIT2: freshlyill has provided a direct download of the update pkg file in post #7
EDIT3: This update definitely cannot be made on rooted Heros but doesn't hurt the phone if you try. No risk.
EDIT4: UPDATE: SUCCESS! thecodemonk has confirmed that root is still available on page 4. Process: Use stock RUU to bring it back to stock, download and apply update, re-root like normal!
EDIT5: Satinkzo has also confirmed that the above works. Now, somebody ROM this sucker up