The Altair 8800B had a variant, the 8800BT that was a turn key version with only a power and reset switch on the front panel. I doubt if there will be much demand for that.
As for running 8080 software at 50 MHz, I've already beaten that with my z80 graphical interface, full front panel emulation. It's written in Objective-C and runs at about 270 MHz on my 2.33 GHz Mac Pro. It has all the front panel I/O as any other real or emulated 8080/z80 machine along with a host of other features: single step and slow step, step by instruction and step by bus cycle, 7 segment readouts for all of the z80 registers, and full display update in real time. It also can run multiple instances of an emulation simultaneously. The program can save and load full memory images to save on toggling time.
What it doesn't have yet is a way to connect emulated peripherals. Eventually I'll get this working.
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