As everyone is still waiting for Phil Askey to post his D70 review, I have found some other respectable reviews:
Bjørn Rørslett the norwegian naturfotograf has posted a D70 review. He compares output the D70 with the D2H (30% less pixels and thus faster workflow). Other remarkable tests are infrared and UV sensitivety. WHen you stop by this site, also have a look at his S3 with Rodenstock Heligon 50mm f/0.75 lens.