Did you think that just about everything that could be leaked about the Sony Xperia Z1 had done so? If so, you probably weren't alone. Today we've learned that that's simply not the case, though, as more information on Sony's upcoming flagship has surfaced with less than 24 hours before its due to be officially unveiled.

A new report from XperiaBlog has revealed what's said to be the official press release that Sony will use to introduce the Xperia Z1 to the world tomorrow. The lengthy announcement includes a complete rundown of all of the Z1's features, such as its waterproof casing, 5-inch 1080p display and 2.2GHz quad-core Snapdragon 800 processor.

It's long been rumored that one of the Xperia Z1's tentpole features will be its 20.7-megapixel rear camera, and this leaked release backs that up by detailing all of the hardware and software goodies that Sony has packed into its new device. Included is Sony's G Lens tech with a 27mm wide angle and f/2.0 aperture, BIONZ mobile image processing engine, 1/2.3-type Exmor RS for mobile CMOS image sensor and Timeshift Burst, a feature that enables the Z1 to snap 61 images in 2 seconds.

Rounding out the Xperia Z1's feature set is 16GB of built-in storage, a microSD card slot for additional memory, a 3,000mAh embedded battery and support for HSPA+ 850/900/1700/1900/2100MHz as well as 4G LTE bands 1, 2, 3, 4, 5, 7, 8 and 20. The Xperia Z1 will purportedly come preloaded with Android 4.2 Jelly Bean in tow and is expected to begin rolling out globally in September.

In addition to this Xperia Z1 leak, a press release and promotional video for Sony's QX10 and QX100 "lens camera" attachments have surfaced at SonyAlphaRumors. The clip demonstrates how the accessories can be paired to a smartphone using Wi-Fi or NFC and then physically attached to the backside of the handset. The leaked video also confirms that the lens cameras can still be used even if they're not actually attached to the phone, allowing users to squeeze them into smaller spaces and use the paired phone as a viewfinder.

The purported announcement for the QX10 and QX100 reaffirm that the two devices will be compatible with Android devices running software version 3.1 or higher as well as Apple's iOS products. Both attachments will reportedly be available later in September, with pricing set at $250 for the 18.2-megapixel QX10 and $500 for the 20.2-megapixel QX100.

The Xperia Z1, QX10 and QX100 are expected to be a big part of Sony's IFA 2013 press conference, which kicks off tomorrow at 4:00 p.m. CET/10:00 a.m. ET. Sony's Xperia Z1 appears to be a nice upgrade to the Xperia Z that debuted earlier this year, and I'm sure many folks will be eager to pit the Z1's 20.7-megapixel camera up against other recent camera-focused smartphones like the Galaxy S4 Zoom and Lumia 1020.

Meanwhile, the QX10 and QX100 are unique accessories that may not appeal to most mainstream consumers if their rumored price tags hold true, but could be nice add-ons for folks that are serious about mobile photography. That's especially true for folks that find themselves frequently swapping phones, thanks to the QX10 and QX100's ability to detach from and reattach to different devices. You can check out the QX10 and QX100 in action for yourself by viewing the leaked promo video that's embedded down below.

Via XperiaBlog, SonyAlphaRumors