As someone else already mentioned Kleiman seemed to be rather a network guy than a programmer. I have to confess that even though I had a look at the source code that I have no idea what the background of the programmer might be. But then I'm much more familiar with C than with C++. And another strong reason against him being Satoshi is not using any of his wealth making his life more comfortable in the end. Seems odd to keep your Bitcoins stashed away when you only have limited time to spend any of them.