WinXP SP2 Training Course for Developers. The MSDN Security Developer Center has an overview of what XP SP2 will mean for developers. Now is better than later to check this out! [via Marquee de Sells: Chris's insight outlet]
And another bit appears - seems to be a cull of previous offerings but poorly organised and severely lacking in detail (and the table says that Secure browsing has no implications for App Dev, ahem, oh yes it does - especially the bit where it says local machine lock down is opt in, but may change in the future to opt-out).