Will Visual Studio 2010 support HTML 5?
I think real question is - will Microsoft support HTML5? Multiple places on the internet I found that Microsoft is seriously considering to support HTML5. If that is true, it makes sense to expect VS 2010 to support HTML5.
The download from the Web Developer Team blog is for Visual Studio 2008. In order to add schema validation support to Visual Studio 2010 you'll want to make some subtle changes:
Add the schema to your 2010 (10.0) folder rather than to your 9.0 folder (duh): So e.g. change the path in the readme from
C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\Packages\schemas\html
to
C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\Packages\schemas\html
Second, EDIT the registry file that is appropriate for your Windows bit version, again replacing the 9.0 with 10.0 - for instance for my 64 bit windows the file reads as follows:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\10.0\Packages\{1B437D20-F8FE-11D2-A6AE-00104BCC7269}\Schemas\Schema 23]
"File"="html\\html_5.xsd"
"Friendly Name"="HTML 5"
"URI"="http://schemas.microsoft.com/intellisense/html-5"