Amazingly I just found the sequel to Old Man's War, Ghost Brigades, on a trolley waiting to be shelved at the local Borders, here in Adelaide.
There's one less to shelve now :D
I found Old Man's War to be a very good read. If anything, it was way too short -- that's more my problem than the story, I just read so fast that anything of average size just doesn't last me long enough. If only I could write as fast as I read. I don't remember running into anything that made me step out of the story (although I did guess what "ghost brigade" meant before it came up).
I found the Ghost Brigade part interesting, but superficial: I don't know, maybe I wanted more detail on how they were 'developed' so quickly. This might not make sense if you haven't read the book (or maybe even if you have) but I don't want to ruin anything for the one reader of this blog who came here via the "Next blog at random" button.
If you did, buy the book. It's good. Actually, buy both books.