How to add Taxonomy Fields To Page Layouts?

1)Create Site Column Of Type Manged Metadata and add this Site Column to Associated Page Layout Content type

For example
If Page Layout is associated  with Project Page,Edit Site columns to include this Manage Metadata columns

2)In SPD refresh toolbox  ,So that Managed Metadata field is visible  as shown in image, Drag this  field to PageLayout
Add taxonomy reference

<%@ Register Tagprefix="Taxonomy" Namespace="Microsoft.SharePoint.Taxonomy" Assembly="Microsoft.SharePoint.Taxonomy, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

This field will be visible only when you create New Page using this Page Layout

Importing Very Simple BDC Model

1)Create a SQL table in Sql DB 
2)Create New  External Content Type in SPD with SQL connection  with User's Identity as Authentication mode.
3)Create required operation like read, write for Table Created in SQL
4)In CA,In Secure Store Service , Create Target application which maps the Credentials for External Content Type (If necessary)
5)In BCS Service Application, Set the required permissions for External Content Type
6)Create The External List With this Content Type
When You browse the list , you come across to this exception
“Login failed for user “NT AUTHORITY\ANONYMOUS LOGON” while browsing to external list.”

To avoid this enable RevertToSelf Authentication Mode as described here
Now ,Set the Authentication Mode to BDC Identity.
7)Save the ECT and export this Model

8)Edit the .bdcm file and modify it according to production server as follows.Save  this file and Import this model in  Production server CA

 <LobSystemInstance Name="UserInfocon">
          <Properties>
            <Property Name="ShowInSearchUI" Type="System.String"></Property>
            <Property Name="AuthenticationMode" Type="System.String">RevertToSelf</Property>
            <Property Name="DatabaseAccessProvider" Type="System.String">SqlServer</Property>
            <Property Name="RdbConnection Data Source" Type="System.String">ProdServer</Property>
            <Property Name="RdbConnection Initial Catalog" Type="System.String">DataBaseName</Property>
            <Property Name="RdbConnection Integrated Security" Type="System.String">SSPI</Property>
            <Property Name="RdbConnection Pooling" Type="System.String">true</Property>
          </Properties>
        </LobSystemInstance>

Silverlight Client Object Model For Windows Phone

In SharePoint 2010,Silverlight Client Object Model was not supported for Windows Phone
But This is improved in SharePoint 2013
As Windows Phone 7.5 first creates an object of the Authenticator class or ODataAuthenticator
which were added to the SharePoint 2013 client object model for Microsoft Silverlight for Windows Phone. It then uses this object as the user’s credentials.
Read more in this msdn post