-Every Apple event is shrouded in secrecy and the upcoming one is no exception.
But as the date nears, wacky rumors give way to sure bets.
-At this point, we really know exactly what they're gonna do.
We've seen both iPhones; the 5C and the 5S.
This is the plastic and the metal version of it.
There've been all sorts of leaks.
We've seen basically everything but a fully-functional phone.
-Also likely, an array of colors for the low-cost iPhone.
that it was all about confirmed by the kaleidoscopic hues of the event invitations, which read, "This should brighten everyone's day." Just as we know what to expect.
We know what not to expect.
-New iPads are definitely coming probably just not at this event.
We're expecting something maybe in October or in early November and it makes a lot of sense for the Christmas and holiday shopping season.
-Don't hold your breath for a refreshed Apple TV either that may come next year, same goes for an iWatch.
Samsung's splashy Galaxy Gear debut, historically, Apple is less focused on being first and more concern with nailing the user experience.
-A lot of times they'll come in late to market and do something that's really kind of stupendous in better than anything else.
They'll come out with the product and keep iterating and iterating and iterating we saw with the iPod, we saw with the iPhone.
We see it with the iPad and they do it with Macs and interests every single version gets tighter.
-Other rumors are hardly to pin down.
-The fingerprint sensor is one of the IFA's rumors and also
one of the most back and forth rumors there is.
The big expectation for what a fingerprints scanner will do is to let you unlock your phone without having use a pass code--
-And of course, Apple could have a trick up its sleeve.
We may hear those magic words.
There's just one more thing.
-I think the biggest surprise would be if the cheaper iPhone is actually free.
This was something that you basically have with the iPhone 4 right now.
But if they introduce a brand new device that's free, that would be a huge deal for Apple.
-And a bigger deal for Apple fans.
All will be
revealed on Tuesday.
In Francisco, I'm Sumi Das, CNET.com for CBS News.