Apple released both the iPad Mini and the 13" Retina MacBook Pro today--both smaller versions of existing products.
While there has been a lot of hype about the iPad Mini, and it seems like an excellent product, I feel like the 13" Retina is the one I was looking forward to, and it got very little press. The reason for the lack of press on the 13" MacBook Pro is that the use cases for it are almost identical to the 15", whereas the iPad Mini is physically held and used differently than its bigger brother, making it more distinct.
Apple emphasizes the one-handed-ness of the Mini design, although I think most people will still use two hands for most interactive tasks. Typing may or may not be harder. My hunch is that people will simply prefer one or the other, not having one of each for different purposes. I'll have stave off judgment on my personal preference until I can actually hold one, since the feel of interaction is the major distinction.