Windows 7 RC is now available. What is the expiration and upgrade path for it?
- Upgrade to official Windows release -- will it be painless, or would it require a reformat / reinstall of all apps.
- Time limit -- will Win 7 RC stop working entirely and refuse to boot on June 1, 2010, or will it retain some limited functionality (e.g. allowing users to copy their data).
Should I install Win 7 RC to some friends who are eager to try it on their laptop, but are not incredibly computer-savvy (and would certainly not appreciate a complete toast-and-reinstall)?
Edit: Sorry if this is a duplicate, but I'm primarily interested on your opinion on whether to recommend it to a non-technical user.