I really enjoyed singularity sky, best SF book I 've read this year, after Bank's Alchemist.
The sequel Iron Sunrise, was more disappointing, as if he'd used all his best SF ideas up in Sky Still an ok read, with a nicely detailed supernova mcguffin that should keep the astrophysics geeks amongst us happy.

Hmm, I shall have to go check out his fantasy stuff at forbidden planet, now officially london's biggest SF selection at their new site.