Random Bug: Start a game. Hit pause. Quit to main menu. Game refuses to respond to input until you kill it via task manager and start again. 
I cant duplicate this either , maybe background application hogging focus or somesuch..
(lol, could i have expressed it any more confusing/EDIT)
Also, i am not amused that my deep neutering tactic is planned to be nerfed! ;p By the way - with this tactic one can limit the ai to 250 ships at each planet - making it a piece of cake to plunge through them later, or cap them when its time for it.
Also here is a bug, but i am pretty sure there is no easy fix, short of doing some sort of collision calculations, which are probably impossible without killing of lower cpu tiers.
I call this "Blob Forming"
Step 1 - Select all your ships
Step 2 - Move click in the center of that formation repeatable
Step 3 - You now have a blob with immensely tight Fire arcs, (which means you have a very concentrated fire, which is VERY effective for above deep raid neutering (less of a surface to attack means stuff has less chances to fire at me)
Step 4 - once tightness is achieved you have to quickly give move orders
"Blob Warping"
Side effect - You can instant warp up to 2000 Ships through a wormhole, and they ALL come out the same time (Now you know how i lost 1200 ships in 10 seconds ;p)
Edit: And Kudos to X for seeing instantly the AI Abuse when the AI continues reinforcing these planets ;p
"Blob Dancing"
Edit2: Also, one can do a Blob Dance around fortresses (or anything, really) (quickly going in to let all bombers fire then drop out, repeat once bombers have recharged) Due to the tight blob ALL bombers fire at once - i managed to kill shields with a single salvo without even coming in range of any defenses due to blob microing
(By the way - i would consider this abusive because there is no way that blobbing all ships together is going to give you that advantage in a 3d space. You would have 1 huge line of ships on the Z axis with barely 1% of them even being in fire range)
I propose a solution to this - give all weapons of the AI small splash (enough to damage all ships in a tight blob, but not enough to have any other "side effect"
