Top tip:
iLexRat appears to still work on iOS 7.1b3 as a 'semi restore' of iOS and the good news is that it doesn't remove the plist changes you make for beta expiry so should be still available to us as a last resort if loading up on tweaks etc breaks your device to point you need to restore - this will be important when 7.1 b3 expires and 7.0.4 is officially updated to 7.1 etc.
Good to know.
No jailbreak for official 7.1 now for sure, even though that was a pipe dream.