on the same link that you indicated in your comment, you will find this paragraph at the top.
A uniform type identifier (UTI) is often used for a presentation type (sometimes called a cardboard type). For example, you can use kUTTypeJPEG (constant for public.jpeg) as the view type for JPEG data. However, applications are free to use any string that is required for the view type ; however, for application-specific data types, it is recommended that you use a reverse DNS record to ensure type uniqueness (for example, com.myCompany.myApp.myType).
Right below is a link to here. http://developer.apple.com/iphone/library/documentation/FileManagement/Conceptual/understanding_utis/understand_utis_intro/understand_utis_intro.html#//apple_ref/doc/uid/TP40001319
What explains the UTIs.
Finally, this link gives you MULTIPLE types of http://developer.apple.com/iphone/library/documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html#//apple_ref/doc/uid/TP40009259-SW1
Of course, this list is NOT ALL, as you can create your own types.
I have successfully inserted html into the mail application. I will give you a good place to start ...
Create an application that displays data types in cardboard. Open the safari on the device, copy the web page. Launch the app. You will see that the paperboard type is "Apple Web Archive Cardboard Type". Please note that this is really a cardboard type (custom). If you try to duplicate a samurai mobile copy and paste the function yourself by creating a web archive and trying to paste it as text in the mail application, it will show the web archive file as raw xml. If you define the type as "Apple Web Archive Cardboard Type", the mail application will actually format the insert as html.
If you want to know what the web archive looks like. On the Safari desktop, just save the web page as an archive and look at the file in a text editor (text editing will try to parse it so you can use another program to view the xml archive).
Please read all the documentation as you may find that you can create custom types in the link you sent me.
maxpower
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