Microsoft has published the second CTP for Windows Embedded POSReady 7. 
It can be obtained from the Windows Embedded POSReady 7 Connect site.
The new release includes some new features, such as:
- Increased componentization
- Native VHD boot support
- Write Filter Management Graphical User Interface
- Write Filter Windows Management Instrumentation (WMI) Provider
- 36 Language Packs
Download: https://connect.microsoft.com/posready/POSReady7CTP