Certainly we all should be ready for a disappointment, because obviously none of us can be 100% sure this will be implemented!
But even if I didn't knew about the existence of such technology, I would be disappointed in Apple, if they think higher resolution and better guts are enough to defend their throne. The iPad 3 presumably has to stand it's ground for one year to come. And nobody should underestimate Windows 8 tablets. It has a really promising UI that has many features missing in iOS. It's e.g. designed to be used primarily with your thumbs, which seems to make navigating around the OS faster and more enjoyable. Plus you can open two apps side by side and access content related menus by swiping from the edge. Well at least the videos look promising. (e.g.
http://gizmodo.com/5882797/designing-windows-8-or-how-to-redesign-a-religion )
This may not drive existing consumers away from iPad, but it will certainly not only grab the attention of new customers looking for tablets, but of those looking for notebooks/PCs too. After all, Windows 8 is a fully fledged OS that you can even use with mouse and keyboard.
As Tim Cook said, tablets will outsell the PC. This will likely be true, but when it comes to new customers, especially old Windows users will tend to buy Windows 8 tablets. And those are a lot.
So now let's assume we get all those nice swiping features in iOS 6 and have the retina display. By christmas, you'll have Windows 8 tablets with FullHD 16:9 screen, even faster CPU and better GPU, more RAM and so on.
An iPad 3 would seem to, if at all, only be on par with it or, at least specs wise, be inferior. And even if spec numbers don't really matter, higher ones certainly do seem better for the average customer. And they may ask, "Why do I need more than FullHD?". This all needs to be considered, and I haven't even mentioned the Nexus tablet or the new Kindle Fire.
This is tough competition and the number of potentially new customers is friggin' huge.
And, to come back to our topic, Senseg has certainly talked to other tablet manufacturers too. As borgqueenx has found out, Senseg was even attending CES this year, showing their technology to Apples competition. So obviously this, if at all, isn't going to be an iPad exclusive. It's probably going to be seen on other tablets and as the Senseg guy said, probably by Christmas 2012.
No matter how good the new AppleTV integration will be and the retina display may look, it isn't enough. And it would be a shame to see a fundamental paradigm shift, like the ability to not only touch, but
feel digital content, feel the internet, for the first time in history, on a device that is not made by the company who made this all possible in the first place - Apple.