In the meantime, I recommend giving Logitech's Create keyboard case the jeweler’s eye. Like Apple's keyboard, it uses the iPad Pro's "smart connector" for its connection and power.
Here are four reasons to consider Logitech’s iPad Pro keyboard:
1. It's available now. You've waited since the iPad Pro's announcement in September to get your hands on Apple's gigantic tablet. And you know you're going to want a keyboard to go with it. Do you really want to wait for the iPad-as-laptop experience
If not, head to your nearby Apple Store. The day of the iPad Pro launch (Nov. 11), I noticed at least half a dozen new owners of the big Apple tablet buying Logitech’s keyboard. The Create keyboard is also available for shipping in 1-2 business days on Apple.com. On Logitech’s website, however, its status as of Nov. 11 was listed as "Pre-Order."
2. The keys are backlit. I'm a big fan of backlit keyboards. How else can you accurately type while sitting on the sofa watching The Walking Dead Keyboards without backlighting are a deal killer for me. Apple's Smart Keyboard lacks it; Logitech's Create has it.
3. It comes in five colors. You’ve got a choice of red with gold keyboard panel; black with a space grey panel; classic blue with silver panel; iris (purple) with black; or black-on-black. With Apple’s Smart Keyboard, you’ve got one color: grey. (Note: Apple.com and Apple Stores currently only carry three of the five color choices.)
4. Logitech’s keyboard is less expensive. Apple’s Smart Keyboard is $169 compared to Logitech’s $150 price tag.
In my brief tests so far, I’ve found the Create keyboard to be comfortable for typing, with keys spaced nicely apart. The case’s “tightly woven premium fabric” feels nice to the touch, and I found the iPad Pro with the Create keyboard easy enough to type with on my lap — it was more stable than I thought it would be.
One wish: I'd have appreciated a fabric loop or some other way to attach Apple's Pencil to the Logitech case.
In all fairness, I’ve yet to test Apple’s Smart Keyboard, beyond a few minutes in the Apple Store. But given some early reviews of it, I may stick with the Logitech keyboard. Example: In The Verge, Walt Mossberg favored the Logitech Create over Apple’s Smart Keyboard.