So does PR1.1.1. There're some annoying bugs that have to live with everyday. It's possible that this RC is more stable than current PR1.1.1 or the other way round, but I rather update now, plus it's Sunday here, I have more time to configure and do stuffs with the phone.

Is it still 1st of May in europe? Who knows, they might still be on holiday. If they planned to release on May 5th (if true) or maybe longer, those who wait will be more impatient as days, or minutes, or seconds passed... There's no any information when it will be available, at least they should provide a date, people might be more prepared and patient instead of checking the updates every day or hour, etc. Probably they weren't confident with their firmware? Who knows.
At least previous MeeGo release there's a date and it was accurate.