Apple, nor Zagg, invented Bluetooth keyboards.
Microsoft Surface keyboards are not Bluetooth. They attach via a magnetic connector...Very nifty actually, I have the original RT that I have been using for a number of years now...talk about battery life!
In any case, you can’t make a valid claim that Zagg got ripped off....lol...I had a Bluetooth keyboard many years ago, shortly after Bluetooth began to show up in devices.... before tablets....In my case I had to buy the transmitter and the receiver...Must have been early 2000s..I still have a Bluetooth dongle and I still use it!
Zagg is just a accessory maker...
BTW, Microsoft had a tablet OS as far back as win98. I suppose you are now going to tell me that MS ripped off that concept as well..
And I did not say either of them did. . . however, if you will look at the first iPad model when it came out Apple did indeed sell a non-Bluetooth attachable keyboard for it. I am not arguing that Apple "invented" these but that the Microsoft Surface is a mere follower of the design style which has a longest history only of this style IN THE IPAD ecosystem.
None of the rest of your claims holds any merit because there were no tablets prior to the iPad with such keyboards. We were not merely talking "Bluetooth Keyboards" but the concept of a tablet with an attachable keyboard. . . However that keyboard attaches or connects to the tablet. Many of the Apple keyboard covers attached to the iPad magnetically as well, in fact Apple holds the patent for that invention. Look it up. They license it to the keyboard makers.
Zagg is just one of dozens of iPad keyboard makers in the Apple ecosystem. That is the point. Microsoft is only copying something that already existed for years, albeit with their own twist on it, but even the Microsoft keyboard was sold as an optional accessory to the Surface Tablet.
As for slate computers in Windows 98, and later, they were not successful, being big, bulky, and heavy, requiring a stylus to use. They were essentially a kludge. However I won't let you put words in my mouth. I did not say that and don't, unlike some of you guys say that Apple ripped off the iPad concept from that. . . a when they bear no resemblance and Apple's worked.
Apple pre-Steve Jobs can be said to actually have invented the programmable, touch-screen stylus controlled, hand-held Personal Digital Assistant device—Apple certainly coined the name and acronym, PDA.
Although some simplistic, non-touch-screen personal organizers—which were more calculators with limited address book capabilities—existed before Apple brought out the Apple Newton, Apple's ground breaking invention defined the first real tablet computers and created a whole new market that lasted until it was subsumed by the smartphones. . . and the Newton preceded all the rest which were based on and licensed under Apple's basic patents, although the Newton itself did not survive Steve Jobs' ruthless product trimming at Apple on taking back the reins in 1997 of the company he co-founded twenty years earlier. Again, look it up.