From a spec sheet it looks like the SIG Romeo1 is going to be very comparable with the DeltaPoint-Pro but at a much better price point. It's a 3 MOA which concerned me but it's good to hear that the brightness is compensating for that. The Romeo1 is supposed to start shipping on guns in April with the adapter kit models following a couple months later.
Specs are strangely similar. Top load battery, click adjustments, motion activated, adjustable brightness, two piece mount to lock in the lenses. The only big difference I see is the name, and that the Romeo1 has a notch cut in the back like a rear iron sight versus the DPP that has an optional adjustable sight attachment.