Apple has sent out media invitations for an event in a weeks time; next Tuesday.
'This should brighten everyone's day' is most likely related to the rumoured iPhone 5C and it's variety of colour choices. However, the iPhone 5S is also expected to be announced at this event.
---------- Post added 03-09-2013 at 05:27 PM ----------
Here's a summary of what's expected, based on rumours, in both phones:
- http://www.macrumors.com/roundup/iphone-5s
- http://www.macrumors.com/roundup/iphone-5c