I've had my Lucid for about a week now and the first thing I noticed was that it ran VERY hot compared to my old Ally. Granted, I was using the phone CONSTANTLY the first few days, playing, trying out apps, etc. I finally figured out that keeping apps open in the background like Skype and Steam would cause my phone to always be nearly too hot to touch.
I turned off those background apps and now the phone stays cool when I don't use it, but it heats up so quickly that I'm worried that something is terribly wrong with the battery. I have plans to go by the local Verizon store this week but I'm sure they'll simply tell me that it's "normal" or nothing is wrong.