Following some interesting observations on Twitter, I did some stat-checking of my reviews this year based around how many books I have have reviewed from what publishers. The list turned out as:
HarperCollins Voyager: 5
Orbit UK: 5
Pan Macmillan/Tor UK: 3
Black Library: 3
Tor USA: 1
David Fickling Books: 1
So that's 28 in total, 13 of which are 2010 releases. The conclusion I'm drawing so far is that 2010 is the best year for SF&F releases in some considerable time, and we're not even halfway through it yet.
Next up on the to-read pile: Helliconia Summer by Brian W. Aldiss, to be followed by City of Ruins by Mark Newton, Helliconia Winter and The Dervish House by Ian McDonald.