According to this MSDN page:
ntext, text, and image data types will be removed in a future version of Microsoft SQL Server.
Avoid using these data types in new development work, and plan to modify applications that currently use them. Use nvarchar(max), varchar(max), and varbinary(max) instead.
How does this affect SQL Server Compact Edition? varbinary(max)
is not currently supported in SQL Server Compact Edition (CE) 4.0.