i currently have an Optimus S, and i HATE it! i decided to wait till the Evo 3D comes out (hopefully) next month. however, someone mentioned to me that they thought the Nexus S would be better. should i go with the Nexus S now, or wait for the Evo 3D?
If you like root and custom roms, skip the evo 3d, the bootloader is signed and encrypted, which means it is very hard to do anything with.
The nexus s 4g only has a locked bootloader, which can be unlocked very easy and fully usable.
With the locked bootloader on the htc evo 3d, you are going to be stuck with a outdated os for the life of your phone.
Security issues are always going to be a problem, nothing is 100% secure, but the locked bootloader you are 100% at the mercy of htc to update your phone, which given that the htc evo 4g is still on a old 2.2 software, is just sad.
You might not be able to remove bloatware that will effect your phones security and performance.
If you want to the htc evo 3d, please contact htc about removing the encryption off their new phone, HTC | Facebook