New Microsoft Office Web Apps Preview

Following this post here, about experiencing modern Office with SkyDrive, namely the improved features driven by the new Office 365 Home Premium, it’s public that you can opt-in by following this: Sign in using this special link and create a new document.
After entering your SkyDrive, you get the following notification:
Create a new document and check out the improvements as well as the new features on these aspects:

• improved authoring
• Touch support
• Document collaboration

Have fun.