No sé pero últimamente me ha dado por las siglas … Bueno que ya tenemos las versiones finales para descargar…
Windows SharePoint Services 3.0: Software Development Kit (SDK)
The Windows SharePoint Services 3.0 software development kit (SDK) contains conceptual overviews, programming tasks, samples, and references to guide you in developing solutions based on Microsoft Windows SharePoint Services 3.0.
SharePoint Server 2007 SDK: Software Development Kit and Enterprise Content Management Starter Kit
The Microsoft Office SharePoint Server 2007 Software Development Kit (SDK) contains conceptual overviews, programming tasks, code samples, references, and an Enterprise Content Management (ECM) starter kit to guide you in developing solutions based on Microsoft Office SharePoint Server 2007.