T - Tiger
SN/SL - Snow Leopard
ML/L - Mountain Lion/Lion
Not a quesion but marked to encourage....
So like many I found it would be cool to do the i7 quad core. Like many I ran into many of the reason why I was thinking I should have waited to add a 3rd mini.
Many reason why your apps don't work is because they were designed to run as 32-bit or their control panel was and even if it is 64-bit for legacy reason the developer may not have created a 64-bit panel. ML now only has a 64-bit preference unlike Snow and I haven't really played with Lion. The move off of Snow mean you have to make note of several items to deal with, not only all the things you loved with Tiger and lost with Leopard and then Snow, but updating applications with other vendors.
Clear the PRAM : Late 2012 - still need to do keyboard combo to get it to flush; no not just the pull power and wait 10 seconds, if you want to see the bar at the bottom during boot.
iPhoto was not available due to required 10.8.2; well iPhoto for Mountain Lion is 9.3.2 so get it and it will work with 10.8.1. Although I was loaded with 10.8.2 from the store, a factory reload put 10.8.1 back and iLife was gone. I did try my iLife Pack before realized it was the wrong version for ML.
Like many, I thought it was great to have a short one/two button hop to items (Not like the other guys 4/8 step together), yes Apple is moving to that too when they dropped app features. (lets not talk about FRONT ROW and ITUNES for now) - display menu bar is part of ML(extra items folder) just doesn't have all the shortcut settings.
LCD TV Monitors, you know the big 32/40 inch ones with HDMI. Ok the color is bad out of box with the HD 4000 Intel; but only because the previous Intel, NVidia and AMDs worked pretty well with defaults. (TWEAK your TV settings).
Ok the washed out look in safari and the missing activity option, live with it as there are work arounds and mainly it because the TEXT in SAFARI 6 has a 3D white shadow which give the double vision look.
So were do we go from here; now that I got iphoto working without 10.8.2 and the flicker is due to the auto detect feature and drivers. You will see the boot camp video drivers work much better the the OS drivers ( please we don't want to go backwards - work with intel and get good drivers and a panel tool that can work)
I know this is hard to follow and I will put some quick fixes here soon.
Mini Mac are the Best.