I have a titanium mug like the one above, with a bail arm.
When I use it I have the bail arm raised, so it doesn't get hot and can be lifted off the stove (the handles are a bit short, and do get too hot. I agree with the above - if someone makes a Ti Crusader mug then I'll be all over it). Like this:
I've never got the 'burn your lips on the mug' claim.
You see, such is the laws of thermodynamics, that the mug can not be hotter than the contents. So if it's too hot to put your lips on then it's too hot to swallow without scalding yourself, no matter how hot you like your tea.
In fact, I find the rim cools down fairly quickly on Ti (due to the thinness of the wall), especially the bit that's above the liquid.
It's a problem I've just never encountered. Of course, it depends on how hot you like to drink your tea (I like warm rather than hotter than the centre of the Sun), but I still maintain that if you can't put your lips to the...er...lip, then you can't drink it without taking the lining off your throat.
It becomes a thermometer.
Yeah, just never got that claim.
Like others, all I do is heat water/soup/sloppy things in it.
But if anyone is reading this who wants to make a bit of money, then a Ti Crusader mug would be a cracking idea...