Overall happy. Few glitches here n there. I liked the old iPad 1 safari hidden tabs/thumb. This new tab system takes up screen space and is a privacy issue. Hopefully they'll bring it back as an option in the future. I wanted a camera that is equal to the current standard on most mobile phones 8-10mpx. But hey, isn't that what the iPad 4 will be for?
Yes, putting a SD card slot into ANY new apple device is like adding on a floppy disk drive. Their vision is that files will be shared wirelessly. See iCloud.
However, I am delighted to have a SD card slot on my Mac mini