I'm pretty sure it does have a 5.7" screen; it fits better with the name. Asus like to put the screen size into the name of their ereaders. The EA800 has an 8" screen, and the DR-900 has a 9" screen. Edit: I relaized after writing this post that both of Asus' current ereaders have a new and unusual screen. That would suggest that the 570 also had an unusual screen.
But 5.7" is a rather curious screen size, isn't it? Why would someone make an OLED screen that size? Okay, I can find references to that screen size, but I can't find that any is actually using it.
You can get a Mirasol screen with those dimensions and resolution, though.
I think Asus laid their first Mirasol ebook reader right under our noses and no one noticed. I don't have any proof, but the circumstantial evidence is intriguing:
- It has the same screen dimensions and resolution as Mirasol
- No one has actually laid hands on it
- it was due out in late 2010 (like Mirasol), but was delayed (like Mirasol)
BTW, you might recall that I predicted back in April that Asus were a likely Mirasol partner. I still don't have any proof, but you have to admit that it's a pretty compelling argument.