I was hopeful that this update would fix push not working and exchange notification issues in my Droid X. Sadly it didn't fix it. However thanks to the update I can now install one of the many stock foryo mail.apk files from the Nexus One. I installed this one and everything works great and as a bonus it bypasses the Exchange pin requirement and adds a select all option! Here is a link to the apk on xda-developers.
[APP] Android Email.apk latest src removed Exchange security - xda-developers
[APP] Android Email.apk latest src removed Exchange security - xda-developers