The SharePoint Online Standard Developer Guide is now available for download here

 

Some of the main topics covered (and tested) include:

·        Customization capabilities and limitations.

·        Custom templates, master pages, style sheets.

·        Data Form Web Parts (adding, editing, deleting, sorting, filtering list items).

·        The 20 site admin templates of the fantastic forty (the other 20 are of type server admin templates and require custom code) are tested and they work with SharePoint Online.

·        List of supported and unsupported SharePoint Online web services.

·        Integrating Microsoft Silverlight with SharePoint Online.

·        No-code Workflows using SharePoint Designer.

·        Code examples and scenarios as appropriate.

 

Also, an update to the SharePoint Online Standard Service Description is now available here.  This update includes a matrix comparison of SharePoint Server 2007, SharePoint Online Standard and Dedicated offerings.