M40A updates?

Do anyone know if Sunwayman will ever put an XM-L in one of these? I really want this light but will only spend the $150.00 if there is a 800 lumens led in there.
Why did they limmit the M40A to 500 lumens while they could have given it the full 630 lumens like in the M40C? The only negative I would like to be dealt with in the new version(holding thumbs) is that there should be one more level. There is too much of a gap between high and medium levels (500L and 150L) I would have liked it to have another lever of lets say 250L.

Already available at overseas dealers. But curiously not in the US. I think you might be a little disappointed with the specs. See here: http://fstoplights.com.sg/products/M40A-T6-600-Lumens-(4-x-AA)-(OP).html

I missed it, thanks for the link. Yes I don't think 600 versus 500 would really be that noticable.