Don't know if I'm being really thick or what, but it seems sensible that something as critical as threat should be hotkeyed on the galaxy map. Last I checked, 'T' was unbound in that view.
Yeah, that was one of the first things I re-bound when I started playing. By default, 'T' is the 'Show Minimap' key. In Galaxy View, it'll show you the mini-map of any system you mouse-over while the T key is pressed. Neat, but not nearly as important as threat. So that got re-bound quickly.
Other changes I made were 'C' for displaying CSGs, 'A' for displaying AIP Reducers, and recently 'I' for Immobile Minor Factions (Dyson, Dark Spire, Showdown).
As for an actually 7.0 release item, I noticed Core Spider Turrets have a build time of 50 seconds rather than the 150 seconds of every other core turret. This, combined with their higher cost, puts the m+c/sec rates really high, effectively preventing build assist or repair.