From the comments I've read, the anti-glare screen protectors don't work well with the new high resolution iPad. I used the Moshi iVisor on the old iPad and it worked great, but it appears that with the new screen, it will obscure the clarity of the images. That may be the price to pay for that amazing new screen.
Anti-glare films diffuse light, so there's some loss of clarity. On the old iPad screen, it wasn't very noticeable..... on the new one, it is.
A clear protector may be the only way to go.