I am pleased to announce that Acropolis July CTP release is now available for download at:

http://www.microsoft.com/downloads/details.aspx?FamilyId=44977885-86B5-4AA0-9F20-DB365BFB9D10&displaylang=en

Features available in Acropolis July CTP includes:
- Transition Animation improvements – You can now add transition when changing page in TabLayoutPanes!
- Better Design Time support
- Better Custom Theming support
- Various bug fixing driven from community feedback 

This release includes many fixes that the community has requested and we are looking forward for more feedback from all of you. Let me know what you think!