I second the need for git. Among other things, the lack of git also breaks many Node.js package installations (i.e. I wanted to install the npm package node-core-audio to use USB audio from Node, but "npm install node-core-audio" fails because git is not present). I can install node packages using the XDK... but I STILL want git for other things on the command line, including npm.
BTW, some command-line tools for USB audio would be useful; "aplay", for instance. I also don't see uvc and uvctools (and things like "uvccapture" would be very useful for the same reason as aplay: to write scripts that can talk to USB devices, which after all, is one of the differentiators of Edison compared to MCU).
For git and other dev packages, it would be ok IMO if there was an extra step like "opkg install git". Adding the above repos works... but references to these repos should be in the standard image, I think. I *don't* want to have to fork off my own image.