Yes, and the radio transceivers have been upgraded, it appears to give more flexibility for T-Mobile and ATT use.
I just added the frequency comparison for the Developer Edition just after the chart, thought I'd done that before, sorry about that.
For best results, do ensure that you're flashing roms (and especially kernels) intended for your model. Roms tie to kernels, kernels tie to hardware. Follow that rule and you'll be ok.