Great job mate!  Have a beer now, you've worked enough for the weekend

Can you kindly explain, how is this news? 

No.

I've tried it but it was a pain to set it to work, and to be honest not very good - I prefer the apps on my side monitors.

Yes you can, Wally has described it in the other thread; you just need to modify the name in one file to your own...some json file. 

Yes it's what we sometimes call engine braking.

Get used to do it in a manner that you don't over-rev the engine, as soon as damage is added you'll notice engines blown up here and there (especially by Dion )  Due to early downshifts.   Plus the rear lockup can be a bitch, hehe. It's effectively a handbrake.

Edit:
with braking (normal braking) you want to apply the force somewhat gradually, but it's very hard and the 'speed' of application depends on the car, too, so sometimes on racey cars it's fine to jump on it.    But if you overdo your braking you'll lock the fronts and lose a lot of braking power - altho this, I believe, is not new information

The rule here basically:
You may hear the tyres somewhat, but you don't want to see smoke.  If that happens, you're skidding.

My current one (Danny Giusa Tyre Temperatures)
does not report tyre wear, that's the only thing I'm missing with it... any of these do that? (correctly)

Oh, and another thing is that I can't pre-set the optimal temp; it's always starting from 100.

hm...wait a second it has been greatly updated.   
http://www.drivingitalia.net/forum/index.php?showtopic=64536