What Dragon Quest games are there on DS?

I'm trying to find another Dragon Quest game to download. I know about 4,5 and 9, but wondered what happened to the numbers inbetween. I saw something about 6:Realms of Revelation on DS but cant find a download anywhere.
thanks.

Obviously IX (9) being the newest one, but I think 6 got translated into english

Replying to #2

Cool, is the 6th in english available for download here??
I had a look in the Great nds collection file, but couldnt find it.

they will make a new DQ game for the DS (port)

Replying to #4

I think it is a translation only