Should you wait? Just answer the question, "Does it meet my needs?". If you aren't going to use it to draw in Photoshop (for example), it may not make a lick of difference whether you have the i7, or which graphics chip it has.
It is equally true that the smoothest ink experience is within Microsoft apps such as OneNote. And so, by far, it should have enough performance for note-taking regardless... Well, at worst Microsoft does have a return policy :)
