If one needs HF, you're still in the 705 arena...looks like the 905 is the VHF+ operators radio
USB input for modulation opens up all kinds of interesting options for "custom waveforms" and experimenting!
Can't wait to grab one. Especially since it keeps the same form factor as the 705. The removable RF module follows what cellular companies like T-Mobile use, remote radio units- to eliminate feedline loss. Brilliant. Again, WHO ELSE is innovating like this in ham radio? Icom is advancing the "art of radio" not dwelling int he ANALog past.