This was a very good piece from gruber and I say that as someone who has consistently hated his snarkiness and apple fanboyism in the past. He makes deep analyses of the ipad mini here and dare I say, sets himself apart as a key asset in the Apple tech press. There should be someone as capable of doing in-depth analyses in other tech fields too. I was thinking specifically about android device news. The folks at androidpolice are the best I know. But not of Gruber's calibre.
Anand Lal Shimpi of http://www.anandtech.com is of that calibre and far less partisan - particularly if you're looking to buy components like motherboards or an SSD.
Oh yes anandtech is the best review site out there. But I specifically meant analysis of various factors and breaking down rumors, long-term trends, stuff like that.