At first I was quite excited about this iPad Pro, and I thought that it could ultimately replace laptops like the MacBook Air. But now I feel more ambivalent about it. I have an iPad Air 2 and I am happy with it. I still believe that
can make the iPad Pro fulfill its potential, and it can be very useful, but it's just not really for me.
Then why don't they release an SDK for pro apps, to work with the newest devices? It can easily be done.

Noo - I think it does need full OS X on it, in order for me to return my surface pro and buy it.
Why would I care about a bigger iPad?
The whole appeal would be in being able to run Logic Pro/music notation software, atleast for me.
iOS significantly lacks in that department when compared to desktop apps.
If it doesn't offer full OS X support, then why release it at all? The surface line will always beat it..
Then why don't they release an SDK for pro apps, to work with the newest devices? It can easily be done.