What was the very first Apple product

When Steve Jobs first introduced the iMac in 1998, he proclaimed that the i stood for Internet. Jobs went on to say, "i also means some other things to us" and displayed a presentation slide with the keywords:

internet
individual
instruct
inform
inspire

You can even view video of this event.

The "i" was first used on the iBook and iMac. These were produced as Steve Jobs wanted a pro and consumer model of a desktop and portable computer. This later rolled out with more products, iSight, iPod, iPhone, iPad.

Yes the products are trademarked, but using an "i" itself before a product is not trademarked and it cannot be. Here is Apple's trademark list

Yes, it's true Apple can remotely delete apps. This is a failsafe in case a nefarious app accidentally makes it past the review process. Not sure about Mac App store, I doubt the ability exists there. It's a different installation/update process.

I don't think it's been done before, and I wouldn't worry about it. It's a good thing. I would want an app that say sniffs my credit card numbers or is actually a trojan horse of some kind to be removed from my iPhone post haste.