We reported - some time ago - on Kamaz's intentions to float on the London exchange in 2008.Now here's news that it's postponed the move by at least a year, and we wonder why. Does Kamaz have pockets deep enough to push forward without an IPO windfall, or is it worried that the issue might not attract much by way of excitement in a market aware of troubled times for truck makers.Or is it talking to someone else?