I think I blogged about this once before. If I did, I don't remember when and can't find it. Since there have been a number of questions on the topic though, I'll post this again, even if it is a duplicate.
ZMan has already done the 'work' for getting the source code from my two books to compile with the latest SDK's. While it's true it's not an 'official' source of these updates, it seems like a perfectly good way to check out the updates without having to go through the pain of fixing the compiler errors due to API changes.
Thanks to ZMan for the updates!!