I just went out and bought the Ghost 100. Ill report later tonight..
Update:
I think the house temp is set to 71 but I don't think Ambient temp really matters.
Battery put on the Ghost 100 at 68% when I took the first reading using GSam Battery Monitor. the * is degrees in Fahrenheit, I'm leaving the Phone on the charger, Hitting the on/off button then sliding info bar down fast enough to read the temp then hitting the button again to turn off the screen. The screen isn't on for anymore then 2 seconds.
11:17pm 81*
11:23pm 87*
11:31pm 93*
11:44pm 93*
11:50pm 99*
at this point I'm thinking GSam might have a delay or something and is off. 31 to 44 in 13 minutes same temp at 93* then 44 to 50, 6 minutes 6 degrees?
11:53pm still 99*
11:57pm 99*
12:13am 98*
12:28am 97*
I think at this point its slowly going down enough to not need to check it regularly.
I think starting temp might have something to do with over heating some people have seen? I'm going to go heavy use tomorrow and see if I can knock the battery down to the 20s. and redo this.