This only just occurred to me, but given that Lagi "gives birth" to a baby dragon at the end of PD Orta, does that mean Lagi is female?
I know Lagi is really just a "rogue" program in a mutated Coolia's body but his/her biology would have to take a specific gender, unless the creatures are androginous. I also realise Edge and Lundi refer to the dragon as "he" but perhaps they can't tell the difference.
If this is true, it opens up some interesting ideas about the union of male and female through the bond between the male riders (Orta being the exception, although she was a drone like the Sky Rider) and the female dragon. And doesn't Lagi create and store a baby dragon in Shelkoof at the end of PD Zwei, which s/he merges with in PD Saga?